Active voice: Subject (doer) + is/am/are + V1+ing + object
Passive voice: The object (receiver of the action) + is/am/are + being + V3 + (by the doer)
Given sentence is a negative sentence of Present Perfect Tense and in active Voice.
Rule : Subject + (has /have) + not + been + V3 + Other agents.
Active voice: They will keep all banks open this Sunday.
Passive voice structure (Future Simple):
will be + past participle
keep → kept (past participle)
Correct passive: All banks will be kept open this Sunday by them.
Active voice formula: Subject + have/has + past participle + the rest of the sentence
Passive voice formula: Object + has/have + been + past participle form of the verb + by + subject
Active voice: Students have always admitted Iqbal's poetry.
Passive voice: Iqbal’s poetry has always been admitted by students
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For order:
Active Voice Formula: V1 + object.
Passive Voice Formula: Let + subject + be + V3
Active Voice: Help me.
Passive Voice: Let me be helped/you are requested to help me.
AGM 18-12-2022
This is a sentence of Past Indefinite Tense
Active Voice Formula: Subject + second form of a verb + object.
Passive Voice Formula: Object+Was/Were+third form of a verb+subject.
Given sentence is in Past simple tense and it is in active voice, we need to change it into passive voice.
Rule : Subject + (was / were) + V3 + Optional Agents.
Know is a verb.
Knew is the second form while known is the third form of Know.
Passive Voice = Object + is/am/are + third of verb + to + subject.
Active: She knows him.
Passive: He is known to her.
AGM 24-12-2022
The given sentence contains one of Model verb (Model Verb = will, shall, can, may, might, could, might, must, would). It is in active voice.
Rule : Subject + Model verb + be + V3 + Optional Objects.
This is a sentence of Present Indefinite Tense.
Rule: Object + Is/Am/Are + 3rd form of a verb + by + subject