I played.
I was playing.
He was playing.
We were playing.
My brother did not play, he played.
My sister was not playing, she was playing.
Mother was cooking.
She was cooking.
We washed.
We were washing.
Did you do.
Were you doing.
Why was she sleeping.
He was sitting.
What was Nick doing.
What were you doing.
I was not sleeping.
What did he do, he read.
What was he doing, he was reading.
Was she sleeping, she was knitting.