 
(KALIMAT AKTIF VS KALIMAT PASIF)
Apakah Kalian pernah terbayang untuk menganalisa struktur sebuah kalimat tertulis yang ada pada sebuah bacaan, seperti artikel, jurnal, atau laporan ilmiah? Atau mungkin beberapa kalimat yang diucapkan oleh seseorang? Kalimat atau ungkapan lisan atau tertulis itu berupa active & passive voice (kalimat aktif & passif), lho. Kata “voice” disini digunakan untuk mereferensikan “kalimat””. Selain itu, kata “speech” dalam direct & indirect speech(kalimat langsung & tidak langsung) dan “sentence” juga dapat digunakan untuk mereferensikan kata “kalimat”. Yuk, simak penjelasan Active – Passive Voice(Kalimat Aktif – Passif) berikut ini.
A.  Pengertian Active - Passive Voice
Active Voice atau kalimat aktif merupakan kalimat yang dimana subjek aktif melakukan suatu tindakan atau aksi (subject as a doer). Sebaliknya Passive Voice atau kalimat pasif adalah kalimat yang mana subjek tidak melakukan suatu tindakan atau aksi, melainkan menunjukkan objek yang menerima tindakan atau aksi oleh subjek. Active Voice memuat unsur tata bahasa “Subject + Verb + Object” atau dalam bahasa Indonesia “S-P-O-K” yang mana Verb atau kata kerja dalam kalimat tersebut bermakna/berimbuhan “me- atau ber-“. Sedangkan, Passive Voice memuat unsur tata bahasa “Object + be + Verb 3  + by Subject” yang mana Verb atau kata kerja dalam kalimat tersebut bermakna/berimbuhan “di- atau ter-”.  
| Active Voice | Passive Voice | 
| Subject + Verb + Object   ... (Adverb) | Object + be + Verb 3  + by Subject ... (Adverb) | 
Contoh : 
§  Active Voice : Maria watersthis plant every day. (Maria menyiramitanaman ini setiap hari) 
Passive Voice : This plant is watered by Maria every day ( Tanaman ini disiram oleh Maria setiap hari).
§  Active Voice : Maria met Mirna yesterday. (Maria menemui Mirna kemarin)
Passive Voice : Mirna were met by Maria yesterday ( Mirna ditemui Maria kemarin).
B.  Perubahan Kalimat Aktif Menjadi Kalimat Pasif 
Perubahan kalimat aktif menjadi kalimat pasif harus memerhatikan ketentuan-ketentuan sebagai berikut.
1.   Kalimat aktif yang bisa diubah menjadi kalimat pasif harus memiliki objek, atau berupa kalimat aktif yang mengandung transitive verbs (kata kerja yang memerlukan objek langsung (direct object)) seperti make, bring, buy, write dan sebagainya. Objek kalimat umumnya berupa noun(kata benda) ataupun pronoun (kata ganti). 
*) Sebaliknya, kalimat aktif yang mengandung intransitive verbs (kata kerja yang tidak memerlukan objek langsung) seperti live, cry, swim, go, arrive, dan die tidak bisa diubah menjadi kalimat pasif. Umumnya intransitive verb diikuti dengan adverb(kata keterangan). 
Contoh : 
§  Active Voice : Maria brings a book (objeknya adalah a book & bring: transitive verb, maka kalimat tersebut bisa diubah ke kalimat pasif)
§  Active Voice: Maria stays at home this weekend (tidak ada objek; kata “at home this weekend” merupakan kata keterangan (Adverb) & stay: intransitive verb. Jadi kalimat tersebut tidak dapat diubah ke kalimat pasif). 
2.   Ubahlah posisi Subjek dan Objek kalimat aktif, yaitu Subjek ditempatkan di belakang dengan disertai “by” sebelumnya, kemudian Objek ditempatkan di depan kalimat. Contoh: 
§  Active voice: (S) Erika (V) writes (O) a letter (Adverb) every week for his parents. 
§  Passive voice: (O) A letter (V) is writen (S) by Erika (Adverb) every week for his parents.
3.   Ubahlah Verb atau kata kerja pada kalimat menjadi pola “be + V3”. 
*)Perhatikan bentuk kata kerja yang digunakan dalam kalimat aktif, apakah berbentuk present, past, continuous, perfect, atau future. Perhatikan contoh berikut! 
| Tense | Active Sentence | Passive Sentence | 
| Present  | Andy sends a letter to me  | A letter is sent by Andy to me | 
| Past  | Andy   sent  a letter to me  | A   letter was sent by Andy to me | 
| Continuous  | Andy is sending a letter to me  | A letter is being sent by Andy to me | 
| Perfect  | Andy   has   sent a letter to me  | A   letter has been sent by Andy to me | 
| Future  | Andy   will   send a letter to me  | A   letter will be sent by Andy to me | 
*) to be “is/am/are” atau “was/were”  dan Auxiliary Verb “has/have” dalam kalimat pasif tergantung pada bentuk objek, yaitu apakah objek Plural (jamak), atau Singular (Tunggal) dan jenis tenses yang digunakan. 
Lihat juga >>> Noun: Singular & Plural 
C.  Rumus Active Voice into Passive Voice
Untuk membentuk kalimat pasif, perhatikan verb (kata kerja) atau jenis tenses yang digunakan dalam kalimat actif tersebut. “Be” pada kalimat pasif menyesuaikan dengan objek, yaitu apakah singular (tunggal) atau plural (jamak). 
a.   Kalimat Positif (Positive)
| Tenses | Active   Voice | Passive   Voice | 
| 1.     Simple Present  | (+)S   + V1/ V-s/es + O | (+)   O + be (is, am, are) +  V3 + by S | 
| 2.     Present Continuous | (+)   S + is/am/are + V-ing + O | (+)   O + be (is, am, are) +  being + V3 + by S | 
| 3.     Present Perfect  | (+)   S + have/has + V3 + O | (+)   O + have/has + been + V3 + by S | 
| 4.     Present Perfect Continuous | (+)   S + have/has + been + V-ing + O | (+)   O + have/has + been + being + V3 +   by S | 
| 5.     Simple Past  | (+)   S + V2 + O | (+)   O + to be (was/were) +  V3 + by S | 
| 6.     Past Continuous | (+)   S + was/were + V-ing + O | (+)   O + to be (was/were) +  being + V3 + by S | 
| 7.     Past Perfect  | (+)   S + had + V3 + O | (+)   O + had + been + V3 + by S | 
| 8.     Past Perfect Continuous | (+)   S + had + been + V-ing + O | (+)   O + had + been + being + V3 + by S | 
| 9.     Simple Future  | (+)   S + will/shall + V1 + O | (+)   O + will/shall + be + V3 + by S | 
| 10.       Future   Continuous | (+)   S + will + be + V-ing + O | (+)   O + will + be + being + V3 + by S | 
| 11.       Future   Perfect  | (+)   S + will + have + V3 + O | (+)   O + will + have +  been + V3 + by S | 
| 12.       Future   Perfect Continuous | (+)   S + will + have + been + V-ing + O | (+)   O + will + have + been + being + V3  + by S | 
| 13.       Simple   Past Future  | (+)   S + would/ should + V1 + O | (+)   O + would/ should + be + V3 + by S | 
| 14.       Past   Future  Continuous | (+)   S + would/ should + be + V-ing + O | (+)   O + would/ should + be + being + V3  + by S | 
| 15.       Past   Future Perfect  | (+)   S + would/ should + have + V3 + O | (+)   O + would/ should + have +  been + V3 + by S | 
| 16.       Past   Future Perfect Continuous  | (+)   S + would/ should + have + been +   V-ing + O | (+)   O + would/ should + have +  been + being + V3 + by S | 
| 17.       Modals    | (+)   S + can/ may/ must/ ought to + V1  + O | (+) O   + can/ may/ must/ ought to + be V3  + by S | 
*Keterangan: 
§  Penggunaan kalimat pasif dengan perfect continuous tenses biasanya jarang dilakukan karena menghasilkan struktur kalimat yang terlalu kompleks (sulit dipahami). 
§  Penggunaan be menyesuaikan dengan subjek dan jenis tenses yang digunakan:
1)   I menggunakan am; was; have; 
2)   He, she, it, nama orang tunggal, subjek singular (tunggal) menggunakan is; was; has;
3)   You, They, We, nama orang banyak, subjek plural (jamak) menggunakan are; were; have; 
4)   “Had” pada past perfect dapat digunakan untuk semua subjek; 
5)   “will/ would” (lebih umum digunakan) pada future tense dapat digunakan semua subjek; sedangkan shall hanya untuk subjek I & We (jarang digunakan); 
6)   Modal (can, could, may, might, ...) dapat digunakan oleh semua subjek. 
b.   Kalimat Negatif (Negative)
Bentuk kalimat negatif dari active voice atau passive voice ditandai dengan adanya “not” sesudah auxiliary verb, seperti be (is, am, are, was, were) ataupun modal (can, could, shall, should, will, would, dan lain-lain)
| Tenses | Active   Voice | Passive   Voice | 
| 1.     Simple Present  | (-)   S + do/does not + V1 + O | (-)   O + be (is, am, are) not +  V3 + by S | 
| 2.     Present Continuous | (-)   S + is/am/are not + V-ing + O | (-)   O + be (is, am, are) not +  being + V3 + by S | 
| 3.     Present Perfect  | (-)   S + have/has not + V3 + O | (+)   O + have/has not + been + V3 + by   S | 
| 4.     Present Perfect Continuous | (-)   S + have/has not + been + V-ing +   O | (-)   O + have/has not + been + being + V3  + by S | 
| 5.     Simple Past  | (-)   S + did not V1 + O | (-)   O + to be (was/were) not +  V3 + by S | 
| 6.     Past Continuous | (-)   S + was/were not + V-ing + O | (-)   O + to be (was/were) not +  being + V3 + by S | 
| 7.     Past Perfect  | (-)   S + had not + V3 + O | (-)   O + had not + been + V3 + by S | 
| 8.     Past Perfect Continuous | (-)   S + had not + been + V-ing + O | (-)   O + had not + been + being + V3 +   by S | 
| 9.     Simple Future  | (-)   S + will/shall not + V1 + O | (-)   O + will/shall not + be + V3 + by   S | 
| 10.       Future   Continuous | (-)   S + will not + be + V-ing + O | (-)   O + will not + be + being + V3 +   by S | 
| 11.       Future   Perfect  | (-)   S + will not + have + V3 + O | (-)   O + will not + have +  been + V3 + by S | 
| 12.       Future   Perfect Continuous | (-)   S + will not + have + been + V-ing  + O | (-)   O + will not + have + been + being +   V3 + by S | 
| 13.       Simple   Past Future  | (-)   S + would/ should not + V1 + O | (-)   O + would/ should not + be + V3 +   by S | 
| 14.       Past   Future  Continuous | (-)   S + would/ should  not + be + V-ing + O | (-)   O + would/ should not + be + being +   V3 + by S | 
| 15.       Past   Future Perfect  | (-)   S + would/ should not + have + V3  + O | (-)   O + would/ should not + have +  been + V3 + by S | 
| 16.       Past   Future Perfect Continuous  | (-)   S + would/ should not + have + been +   V-ing + O | (-)   O + would/ should not + have +  been + being + V3 + by S | 
| 17.       Modals    | (+)   S + can/ may/ must not to + V1 + O | (+)   O + can/ may/ must not + be V3 +   by S | 
*Keterangan: 
Pada kalimat negatif auxiliary verb seperti be (is, am, are, was, were), do/does/did, have/has/had, will/shall, dan modal disingkat dengan “not”. Contoh: “is not” menjadi “isn’t”, “are not” menjadi “aren’t”, “was not” menjadi “wasn’t”, dan lain-lain. Lebih lengkapnya silahkan buka link berikut. 
Lihat juga >>> Contraction 
c.   Kalimat Pertanyaan (Interrogative)
Kalimat pertanyaan atau interrogative sentence/question pada umumnya ditandai dengan adanya auxiliary verb yang mengawali kalimat dan pastinya terdapat question mark “?” di akhir kalimat. Selain itu, kalimat pertanyaan juga dapat di awali dengan question word (kata tanya), seperti what, where, when, why, dan lain-lain. 
| Tenses | Active   Voice | Passive   Voice | 
| 1.     Simple Present  | (?) Do/does S + V1 + O? | (?) be (is, am, are) + O + V3 + by S? | 
| 2.     Present Continuous | (?) is/am/are  + S + V-ing  + O? | (?) be (is, am, are) + O +    being + V3 + by S? | 
| 3.     Present Perfect  | (?) have/has + S + V3 + O? | (?) have/has + O + been + V3 + by S? | 
| 4.     Present Perfect Continuous | (?)have/has + S + been + V-ing + O? | (?) have/has + O + been + being + V3 + by S? | 
| 5.     Simple Past  | (?) Did + S + V1 + O? | (?) be (was/were) + O + V3 + by S? | 
| 6.     Past Continuous | (?) was/were + S + V-ing + O? | (?) be (was/were) + O + being + V3 + by S? | 
| 7.     Past Perfect  | (?) had + S + V3 + O? | (?) had + O + been + V3 + by S? | 
| 8.     Past Perfect Continuous | (?) had + S + been + V-ing + O? | (?) had + O + been + being + V3 + by S? | 
| 9.     Simple Future  | (?) will/shall + S + V1 + O? | (?) will/shall + O + be + V3 + by S? | 
| 10.       Future   Continuous | (?) will + S + be + V-ing + O? | (?) will + O + be + being + V3 + by S? | 
| 11.       Future   Perfect  | (?) will + S + have + V3 + O? | (?) will + O + have +  been + V3 + by S? | 
| 12.       Future   Perfect Continuous | (?) will + S + have + been + V-ing + O? | (?) will + O + have + been + being + V3 + by S? | 
| 13.       Simple   Past Future  | (?) would/ should + S + V1 + O? | (?) would/ should + O + be + V3 + by S? | 
| 14.       Past   Future  Continuous | (?) would/ should + S + be + V-ing + O? | (?) would/ should + O + be + being + V3 + by S? | 
| 15.       Past   Future Perfect  | (?) would/ should + S + have + V3 + O? | (?) would/ should + O + have +    been + V3 + by S? | 
| 16.       Past   Future Perfect Continuous  | (?) would/ should + S + have + been + V-ing + O? | (?) would/ should + O + have +    been + being + V3 + by S? | 
| 17.       Modals    | (?) can/ may/ must + S + V1 + O? | (?) can/ may/ must + O + be V3 + by S? | 
*Keterangan: 
Pada kalimat pertanyaan selalu diawali dengan: 1) auxiliary verb seperti be (is, am, are, was, were), do/does/did, have/has/had, will/shall, dan modal (can, could, shall, should, will, would, dll) ataupun 2) question word (what, when, why, where, how, dll). Selain itu, tanda question mark “?” selalu terdapat di akhir kalimat. Lebih lengkapnya silahkan buka link berikut. 
Lihat juga >>> Yes/No Question & Wh/H Question
D.  Rumus Passive Voice dengan Get
Pada percakapan informal, “get” seringkali digunakan pada kalimat pasif untuk menggantikan to be (am/is/are). Kemudian, bentuk get yang digunakan juga harus disesuaikan dengan tense pada kalimat.
| Tense | Rumus Passive Voice | Contoh Passive Voice | 
| Simple Present | get/gets + Verb 3 | get treated | 
| Present Continuous | am/is/are getting + Verb 3 | is getting treated | 
| Simple Past | got + Verb 3 | got treated | 
| Past Continuous | was/were getting + Verb 3 | was getting treated | 
| Present Perfect | has/have gotten + Verb 3 | has gotten treated | 
| Past Perfect | had gotten + Verb 3 | had gotten treated | 
| Simple Future | will get + Verb 3 | will get treated | 
| Future Continuous | am/is/are going to get + Verb 3 | is going to get treated | 
| Future Perfect | will have gotten + Verb 3 | will have gotten treated | 
Contoh Perubahan Active Voice ke Passive Voicedengan Get
| Tense | Active Voice  | Passive Voice  | 
| Simple Present | Mike makes a kite   | A kite gets made by Mike    | 
| Present Continuous | Mike is making a kite   | A kite is getting made by Mike   | 
| Simple Past | Mike made a kite   | A kite got made by Mike   | 
| Past Continuous | Mike was making a kite   | A kite was getting made by Mike   | 
| Present Perfect | Mike has made a kite   | A kite has got made by Mike   | 
| Past Perfect | Mike had made a kite   | A kite had got made by Mike   | 
| Simple Future | Mike will make a kite   | A kite will get made by Mike   | 
|  | Mike is going to make a kite    | A kite is going to get made by Mike  | 
| Future Continuous | Mike will be making a kite   | A kite will be getting made by Mike   | 
| Future Perfect | Mike will have made a kite   | A kite will have got made by Mike   | 
E.   Contoh Perubahan Active Voice ke Passive Voice
Perhatikan contoh perubahan Active voice ke Passive voice berikut ini. sebagaimana dijelaskan di atas, active voice atau kalimat aktif memiliki verb (kata kerja) yang bermakna/berawalam “me- atau ber-“ sedangkan passive voice atau kalimat pasif memiliki verb (kata kerja) yang bermakna/berawalan “di- atau ter-“. 
a.   Kalimat Positif (Positive)
| Tenses | Active Voice | Passive Voice | 
| 1.   Simple Present  | Mila buys  a book.  | A book is   bought by Mila  | 
| 2.   Present Continuous | Mila is   buying a book.  | A book is   being bought by Mila  | 
| 3.   Present Perfect  | Mila has   bought a book.  | A book has   been bought by Mila  | 
| 4.   Present Perfect Continuous | Mila has   been buying a book.  | A book has   been being bought by Mila  | 
| 5.   Simple Past  | Mila bought  a book.  | A book was   bought by Mila  | 
| 6.   Past Continuous | Mila was   buying a book.  | A book was   being bought by Mila  | 
| 7.   Past Perfect  | Mila had   bought a book.  | A book had   been bought by Mila  | 
| 8.   Past Perfect Continuous | Mila had   been buying a book.  | A book had   been being bought by Mila  | 
| 9.   Simple Future  | Mila will   buy a book.  | A book will   be bought by Mila  | 
| 10.       Future Continuous | Mila will   be buying a book.  | A book will   be being bought by Mila  | 
| 11.       Future Perfect  | Mila will   have bought a book.  | A book will   have been bought by Mila  | 
| 12.       Future Perfect Continuous | Mila will   have been buying a book.  | A book will   have been being bought by Mila  | 
| 13.       Simple Past Future  | Mila would   buy a book.  | A book would   be bought by Mila  | 
| 14.       Past Future  Continuous | Mila would   be buying a book.  | A book would   be being bought by Mila  | 
| 15.       Past Future Perfect  | Mila would   have bought a book.  | A book would   have been bought by Mila  | 
| 16.       Past Future Perfect Continuous  | Mila would   have been buying a book.  | A book would   have been being bought by Mila  | 
| 17.       Modals  | Mila can   buy a book  | A book can   be bought by Mila | 
| Mila could   buy a book  | A book could   be bought by Mila | |
| Mila may   buy a book  | A book may   be bought by Mila | |
| Mila might   buy a book  | A book might   be bought by Mila | |
| Mila must   buy a book  | A book must   be bought by Mila | |
| Mila ought   to buy a book  | A book ought   to be bought by Mila | |
| Mila is   going to buy a book  | A book is   going to be bought by Mila | |
| Mila is   able to buy a book  | A book is   able to be bought by Mila | |
| Mila is   supposed to buy a book  | A book is   supposed to be bought by Mila | 
b.   Kalimat Negatif (Negative)
| Tenses | Active Voice | Passive Voice | 
| 1.   Simple Present  | Mila doesn’t   buy a book.  | A book isn’t   bought by Mila  | 
| 2.   Present Continuous | Mila isn’t   buying a book.  | A book isn’t   being bought by Mila  | 
| 3.   Present Perfect  | Mila hasn’t   bought a book.  | A book hasn’t   been bought by Mila  | 
| 4.   Present Perfect Continuous | Mila hasn’t   been buying a book.  | A book hasn’t   been being bought by Mila  | 
| 5.   Simple Past  | Mila didn’t   buy a book.  | A book wasn’t   bought by Mila  | 
| 6.   Past Continuous | Mila wasn’t   buying a book.  | A book wasn’t   being bought by Mila  | 
| 7.   Past Perfect  | Mila hadn’t   bought a book.  | A book hadn’t   been bought by Mila  | 
| 8.   Past Perfect Continuous | Mila hadn’t   been buying a book.  | A book had   been being bought by Mila  | 
| 9.   Simple Future  | Mila will   not buy a book.  | A book will   not be bought by Mila  | 
| 10.       Future Continuous | Mila will   not be buying a book.  | A book will   not be being bought by Mila  | 
| 11.       Future Perfect  | Mila will   not have bought a book.  | A book will   not have been bought by Mila  | 
| 12.       Future Perfect Continuous | Mila will   not have been buying a book.  | A book will   not have been being bought by Mila  | 
| 13.       Simple Past Future  | Mila would   not buy a book.  | A book would   not be bought by Mila  | 
| 14.       Past Future    Continuous | Mila would   not be buying a book.  | A book would   not be being bought by Mila  | 
| 15.       Past Future Perfect  | Mila would   not have bought a book.  | A book would   not have been bought by Mila  | 
| 16.       Past Future Perfect Continuous  | Mila would   not have been buying a book.  | A book would   not have been being bought by Mila  | 
| 17.       Modals  | Mila cannot   buy a book  | A book cannot   be bought by Mila | 
| Mila could   not buy a book  | A book could   be bought by Mila | |
| Mila may   not buy a book  | A book may   not be bought by Mila | |
| Mila might   not buy a book  | A book might   not be bought by Mila | |
| Mila must   not buy a book  | A book must   be bought by Mila | |
| *Mila ought   not to buy a book  | *A book ought not to be bought by Mila | |
| *Mila isn’t   going to buy a book  | *A book isn’t going to be bought by Mila | |
| *Mila isn’t   able to buy a book  | *A book isn’t able to be bought by Mila | |
| *Mila isn’t   supposed to buy a book  | *A book isn’t supposed to be bought by Mila | 
*Contoh active & passive voice dengan Phrasal modal. Beberapa auxiliary verb disingkat atau dikontraksi. 
c.   Kalimat Pertanyaan (Interrogative)
| Tenses | Active Voice | Passive Voice | 
| 1.   Simple Present  | Does Mila buy a book? | Is a book bought by Mila? | 
| 2.   Present Continuous | Is Mila buying a book? | Is A book being bought by Mila?  | 
| 3.   Present Perfect  | Has Mila bought a book? | Has a book been bought by Mila? | 
| 4.   Present Perfect Continuous | Has Mila been buying a book? | Has a book been being bought by Mila?  | 
| 5.   Simple Past  | Did Mila buy a book?  | Was book bought by Mila?  | 
| 6.   Past Continuous | Was Mila buying a book? | Was a book being bought by Mila? | 
| 7.   Past Perfect  | Had Mila bought a book? | Had a book been bought by Mila? | 
| 8.   Past Perfect Continuous | Had Mila been buying a book? | Had a book been being bought by Mila? | 
| 9.   Simple Future  | Will Mila buy a book? | Will a book be bought by Mila?  | 
| 10.       Future Continuous | Will Mila be buying a book? | Will a book be being bought by Mila? | 
| 11.       Future Perfect  | Will Mila have bought a book? | Will a book have been bought by Mila? | 
| 12.       Future Perfect Continuous | Will Mila have been buying a book? | Will a book have been being bought by Mila? | 
| 13.       Simple Past Future  | Would Mila buy a book? | Would a book be bought by Mila? | 
| 14.       Past Future    Continuous | Would Mila be buying a book? | Would A book be being bought by Mila? | 
| 15.       Past Future Perfect  | Would Mila have bought a book? | Would a book have been bought by Mila? | 
| 16.       Past Future Perfect Continuous  | Would Mila have been buying a book? | Would A book have been being bought by Mila? | 
| 17.       Modals  | Can Mila buy a book?  | Can a book be bought by Mila? | 
| Could Mila buy a book? | Could a book be bought by Mila? | |
| May Mila buy a book?  | May a book be bought by Mila? | |
| Might Mila buy a book?  | Might a book be bought by Mila? | |
| Must Mila buy a book? | Must a book be bought by Mila? | |
| Ought Mila to buy a book? | Ought a book to be bought by Mila? | |
| Is Mila going to buy a book?  | Is a book going to be bought by Mila? | |
| Is Mila able to buy a book?  | Is a book able to be bought by Mila? | |
| Is Mila supposed to buy a book?  | Is a book supposed to be bought by Mila? | 
F.   Penggunaan Passive Voice
Kalimat pasif umumnya digunakan dalam kondisi atau situasi sebagai berikut:
1)   Pelaku aksi  atau “by Subject” dalam kalimat pasif dicantumkan jika kalimat tersebut memuat informasi yang sangat penting, yaitu ketika:
a)   terdapat informasi baru (kalimat kedua). Contoh: Bottled water comes from mountain water. It is produced by water company. (“Perusahaan Air Minum adalah yang memproduksi produk air minum” merupakan informasi baru)
b)   mengetahui nama jelas pelaku aksi atau pelaku aksi adalah orang terkenal. Contoh: Siti Nurbaya was written by Marah Roesli. (Marah Roesli adalah penulis yang dikenal karena karnyanya “Siti Nurbaya”)
c)   identitas pelaku aksi sangat mengejutkan atau tidak dikira-kira. Contoh: It is hard to believe that this beautiful jazz melody was composed by an eight-year-old boy. (Kalimat pasif tersebut merujuk pada kekaguman pada talenta anak usia 8 tahun). 
2)   Kalimat pasif tidak perlu mencantumkan “by Subjek”, yaitu ketika: 
a)   pelaku aksi tidak diketahui. Contoh: My money has been stolen. (Dalam contoh passive voice ini, pembicara tidak mengetahui siapa yang mencuri dompetnya)
b)   pelaku sudah jelas dan tidak perlu disebutkan. Contoh: Wheat is grown in Karawang. (Dalam contoh ini, sudah sangat jelas bahwa petani adalah pelaku aksi atau orang yang menanam gandum)
c)   tidak ingin memberitahukan siapa pelaku aksi. Contoh: Mistakes were made. (Dalam contoh ini, pembicara tidak mau memberitahu siapa yang melakukan kesalahan)
d)   pelaku aksi adalah semua orang (pada umumnya). Contoh: Transjakarta is used as an alternative means of transportation to avoid traffic jam (Dalam contoh ini, pelaku aksi adalah semua orang karena transjakarta dapat digunakan oleh masyarakat luas)
e)   pelaku aksi telah disebutkan pada kalimat sebelumnya. Contoh: Mr. Han caught Ari cheating on the test. Ari was given punishment immediately (Dalam contoh passive voice ini, Mr. Han sebagai pelaku aksi sudah disebutkan sebelumnya sehingga tidak perlu ditambahkan pada kalimat kedua) 
See also:
4.   Kinds of Tense 
5.   Kinds of Sentence: Positive, Negative, & Interrogative 
6.   Auxiliary Verb: Primary & Modal Auxiliary Verb
7.   Contraction
8.   Yes/No Question & Wh/H Question
References: 
1. Azar, Betty Schrampfer. 1999. Understanding and Using English Grammar 3rd Edition. Pearson Education: White Plains, New York.
2.   http://www.studiobelajar.com/passive-voice/ diakses pada tanggal 20 Oktober 2020
3. http://www.ilmubahasainggris.com/active-voice-dan-passive-voice-pengertian-rumus-ciri-pola-dan-contoh-kalimatnya-dalam-bahasa-inggris/ diakses pada tanggal 20 Oktober 2020
Demikian penjelasan materi terkait “Active & Passive Voice (Kalimat Aktif & Pasif)”. Semoga bermanfaat dan dapat menambah wawasan baru bagi kita dalam belajar bahasa Inggris. Terima kasih...
 
 
 

 

 

 
