Be - was/were - been
Begin - began - begun
Do - did - done
Fly - flew - flown
Forget - forgot - forgotten
Get up - got up - got up
Go - went - gone
Have - had - had
Say - said - said
See - saw - seen
Sing - sang - sung
Sit - sit - sit
Spend - spent - spent
Swim - swam - swum
Take - took - taken
Tell - told - told