What's the past form of fly ?
flew
What's the past form of wake ?
woke
What's the past form of do ?
did
What's the past form of buy ?
baught
What's the past form of sleep?
slept
What's the past form of grow ?
grew
What's the past form of have?
had
What's the past form of go?
went
What's the past form of pay ?
paid
What's the past form of say ?
said
What's the past form of sing ?
sang
What's the past form of know ?
knew
What's the past form of drink?
drank
What's the past form of win?
won
What's the past form of run ?
ran