Past simple
The past simple of become
became
The past simple of understand
understood
The past simple of sew
sewed
The past participle of drive
driven
The past participle of throw
thrown
The past simple of see
saw
The past simple of keep
kept
The past simple of ride
rode
The past participle of write
written
The past participle of go
gone
The past simple of think
thought
The past simple of draw
drew
The past simple of try
tried
The past participle of sleep
slept
The past participle of leave
left
The past simple of teach
taught
The past simple of wake
woke
The past simple of dream
dreamed / dreamt
The past participle of swim
swum
The past participle of stand
stood
The past simple of (irregular) lie
Lay
The past simple of lay
laid
The past simple of weep
wept
The past participle of buy
bought
The past participle of sit
sat