He

realized it was time he were telling his story.

He

realized it was time he was telling his story.

He

realized it was time he had told his story.

He

realized it was time he had been telling his story.

You

are smiling as if you haven’t believed me.

You

are smiling as if you didn’t believe me.

You

are smiling as if you hadn’t believed me.

You

are smiling as if you don’t believe me.

The

cat had drunk all the milk but looked as though it hadn’t fed for a week

already.

The

cat had drunk all the milk but looked as though it wasn’t fed for a week

already.

The

cat had drunk all the milk but looked as though it didn’t feed for a week

already.

The

cat had drunk all the milk but looked as though it hadn’t been fed for a week

already.

I

doubt if he had been wise to call us.

I

doubt if he will be wise to call us.

I

doubt if he were wise to call us.

I

doubt if he is wise to call us.

It’s

time we hear their request.

It’s

time we heard their request.

It’s

time we had heard their request.

It

was time we heard their request.

I

had been washing the dishes for half an hour, but the kitchen still looked as

if nobody started cleaning it.

I

had been washing the dishes for half an hour, but the kitchen still looked as if

nobody had been starting cleaning it.

I

had been washing the dishes for half an hour, but the kitchen still looked as

if nobody had started cleaning it.

I

had been washing the dishes for half an hour, but the kitchen still looked as

if nobody had been started cleaning it.