A piece of cake
Be
Was - were / Been
Go
Went - Gone
Fly
Flew - Flown
Forget
Forgot - Forgotten
Give
Gave - Given
Break
Broke - Broken
Win
Won - Won
Cost
Cost - Cost
Do
Did - Done
Drive
Drove- Driven
Leave
Left - Left
Buy
Bought - Bought
Hurt
Hurt - Hurt
Speak
Spoke - Spoken
See
Saw - Seen
Understand
Understood - Understood
Eat
Have
Had - Had
Sleep
Slept - Slept
Meet
Met - Met
Ride
Rode - Ridden
Write
Wrote - Written
Learn
Learned/Learnt - Learned/Learnt
Find
Found - Found
Take
Took - Taken