I (sleep) at 10 o'clock yesterday. *

I was sleeping at 10 o'clock yesterday
I were sleeping at 10 o'clock yesterday
I was slept at 10 o'clock yesterday
I slept at 10 o'clock yesterday
Mary (go) to school when she met you. *

Mary going to schoo; when she met you
Mary was going to school when she met you
Mary was go to school when she met you
Mary went to school when she met you
Tom and Jack (play) football in the afternoon yesterday. *

Tom and Jack played football in the afternoon yesterday
Tom and Jack was played football un the afternoon yesterday
Tom and Jack were play football in the afternoon yesterday
Tom and Jack were playing football in the afternoon yesterday
We (run) in the park in the morning yesterday. *

We were running in the park in the morning yesterday
We were run in the park in the morning yesterday
We running in the park in the morning yesterday
We was running in the park in the morning yesterday
Frank (cook) breakfast at 7 o'clock yesterday. *

Frank cooked breakfast at 7 o'clock yesterday
Frank cooking breakfast at 7 o'clock yesterday
Frank was cooking breakfast at 7 o'clock yesterday
Frank were cooking breakfast at 7 o'click yesterday
I and my sister (clean) the house when our mother came home. *

I and my sister were cleaning the house when our mother came home
I and my sister cleaning the house when our mother came home
I and my sister were cleaned the house when our mother came home
I and my sister were clean the house when our mother came home
Sandra (do) homework at 8 o'clock yesterday. *

Sandar did homework at 8 o'clock yesterday
Sandra was do homework at 8 o'clock yesterday
Sandra was doing homework at 8 o'clock yesterday
Sandra were doing homework at 8 o'clock yesterday
You (watch) TV in the evening yesterday. *

You was watching TV in the evening yesterday
You were watching TV in the evening yesterday
You watching TV in the evening yesterday
You were watched TV in the evening yesterday
A cat (walk) in the garden when I saw it. *

A cat walked in the garden when I saw it
A cat walking in the garden when I saw it
A cat was walk in the garden when I saw it
A cat was walking in the garden when I saw it
Pupils (speak) English at the lesson yesterday. *

Pupils were speak English at the lesson yesterday
Pupils was speak English at the lesson yesterday
Pupils were speaking English at the lesson yesterday
Pupils was speaking English at the lesson yesterday​