Question

He writes a letter conver into past continuous tense​

Answer 1

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He was writing a letter.

Structure:- Subject+was/were+V4+Object.

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Answer 2

He was writing a letter.

_______________________

More information

1. Past indefinite

Subject + V2 + object

For example

a. Ram played a match.

b. They cooked food.

c. I went there.

2. Past continuous

Subject + was/were + V1 + ing + object

Was is used with singular subjects.

Were is used with plural subjects.

For Example

a. She was cooking food.

b. They were playing cricket.

c. I was writing a letter.

3. Past perfect

Subject + had + V3 + object ( Always use V3 with has/ have/ had.)

For example

a. She had cooked food.

b. They had played a match.

c. I had left the job.

4. Past perfect continuous

Subject + had been + V1 + ing + object

For example

a. It had been raining since Monday.

b. They had been playing cricket since 2002.

c. I had been living in India for three years.