PASSIVE VOICE (KALIMAT PASIF) dan ACTIVE VOICE (KALIMAT AKTIF) 
Passive voice (Kalimat Pasif)Sebuah kalimat yang subjectnya dikenai suatu pekerjaan atau kalimat pada  subject tersebut menjadi sasaran kegiatan yang dinyatakan oleh kata  kerja. Ciri-ciri kalimat pasif adalah berawalan di- dan berawalan ter tergantung pada kalimatnya.
Active voice (Kalimat Aktif)sebuah kalimat yang subjuctnya berbuat sesuatu atau melakukan suatu  pekerjaan. Ciri-ciri kalimat aktif adalah kata kerjanya selalu berawalan  me- dan beberapa memiliki awalan ber-.
Rumus Passive  and active Voice:- Subject + be + Verb3 + by + modifier
Contoh Kalimat Passive Voice:
- The Teacher enjoyed teaching the student (active)
- The students enjoyed being taught by the teacher (passive)
- you regretted that principal had to resign from office (active)
- it was regretted that the principal had to resign from office (passive)
- I consider her very pretty (active)
- she is considered very pretty (passive)
- past perfect continous tense
active: Uki had been meeting thempassive: they had been being met by himactive: Dania will be watering this platpassive: this plant will be being watered by her- past future continous tense
active: Riko would be meeting thempassive: they would be being met by him- future perfect continous tense
active: Uti will have been watering this plantpassive: This plat will have been being watered by her.
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