play
played
be
was/were
At three o'clock in the morning Mary (was reading/read).
was reading
Jerry (BUY) a new car last month.
Ron (STUDY) at ten o o'clock last night.
was studying
laugh (PT. riso/SP. reir)
laughed
did
I (was calling/called) Linda at ten last night.
called
When I heard the knock on the door, I (OPEN) it.
opened
I (TAKE) the test yesterday.
took
snap (i.e. snap pictures; PT. tirar fotos/SP. tomar fotos)
snapped
While I (watched/was watching) TV, I heard a strange noise.
was watching
He (GO) to the library when he suddenly saw her pass by.
was going
We (GO) to the concert last weekend.
went
study
studied (y -ied)
think
thought
When Bob (arrived/was arriving), everyone was eating.
Cindy (WATCH) television while Tom (SLEEP).
was watching/was sleeping
When it (START) to rain, I (HAVE) dinner.
started/was having
stay (PT. ficar/SP. quedate)
stayed
eat
ate
While I was studying, my roommate (listened/was listening) to the radio.
was listening
He (READ) while I (WRITE) my essay.
was reading/was writing
Mary (SLEEP) when the phone (RING).
was sleeping/rang