The examples
Tense |
Subject |
Verbs |
(prepositional) Object |
|
| Present Continuous | Active: | Rita | is writing | a letter |
| Passive: | A letter | is being written | by Rita | |
| Past Continuous | Active: | Rita | was writing | a letter |
| Passive: | A letter | was being written | by Rita | |
| Past Perfect | Active: | Rita | had written | a letter |
| Passive: | A letter | had been written | by Rita | |
| Future Perfect | Active: | Rita | will have written | a letter |
| Passive: | A letter | will have been written | by Rita |