to be - was/were - been
to have - had - had
to buy - bought - bought
to think - thought - thought
to fly - flew - flawn
to come - came - come
to write - wrote - written
to go - went - gone
to eat - ate - eaten
to speak - spoke - spoken
to see - saw - seen
to say - said - said
TO BE
I am, you are, he/she/it is, we/you/they are
I was, you were, he/she/it was, we/you/they were
