Question

formation of simple past ; past continous; past perfect and past perfect continuous

Answer 1

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Answer 2

simple past->
subject+second form of the verb +rest of the sentence.
past continuous->
subject +was/were+verb in ing form (first form)+rest of the sentence.
past perfect ->
subject +had+third form of the verb (past participle )+rest of the sentence.
past perfect continuous ->
subject +had been +first form of the verb +ing+rest of the sentence.

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