Buy
Bought-Bought
Have
Had-Had
Forget
Forgot-Forgotten
Steal
Stole-Stolen
Take
Took-Taken
Drive
Drove-Driven
Learn
Learnt/Learned-Learnt/Learned
Speak
Spoke-Spoken
Drink
Drank-Drunk
Bite
Bit-Bitten
Eat
Ate-Eaten
Write
Wrote-Written
Read
Read-Read
Bring
Brought-Brought
Cut
Cut-Cut
Give
Gave-Given
Break
Broke-Broken
See
Saw-Seen
Go
Went-Gone
Do
Did-Done
Come
Came-Come