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এই পরীক্ষায় এই টপিক থেকে ১টি প্রশ্ন।
বিকল্প: (ক) By whom was the tree planted here? ✓ • (খ) Who the tree had been planted hereby? • (গ) The tree was planted here by whom? • (ঘ) By whom had the tree been planted here?
| Tense | Passive structure |
|---|---|
| Simple Past | was/were + V3 |
| Who (subject question) | By whom + auxiliary + subject + V3 |
| Whom (object question) | By whom |
| What (object) | What was... |
| Tense | Active | Passive |
|---|---|---|
| Simple Present | He writes | is written |
| Present Continuous | is writing | is being written |
| Present Perfect | has written | has been written |
| Simple Past | wrote | was written |
| Past Continuous | was writing | was being written |
| Past Perfect | had written | had been written |
| Future Simple | will write | will be written |
| Future Perfect | will have written | will have been written |
Modal + be + V3 → can be done, must be finished, should be told
"Who → By whom" in question-passive। Subject of active → Object of by-phrase।
Voice Change — মূল লেকচার শিট — All tense voice change, interrogative/imperative passive, special cases।