Do in Past Participle
Done
Sing in Past Participle
Sung
Pay in Past Participle
Paid
Eat in Past Participle
Eaten
Write in Past Participle
Written
Think in Past Simple
Thought
Drive in Past Participle
Driven
Go in Past Simple and Participle
Went and Gone
Buy in Past Simple
Bought
Swim in Past Simple
Swam
See in Past Simple
Saw
Fly in Past Participle
Flown
Sleep in Past Participle
Slept
Run in Past Simple
Ran