undo
undid / undone
wear
wore / worn
smell
smelt / smelt
wake
woke / woken
throw
threw / thrown
shrink
shrank / shrunk
give
gave / given
think
thought / thought
begin
began / begun
lay
laid / laid
understand
understood / understood
shake
shook / shaken
tell
told / told
sell
sold / sold
take
took / taken
swim
swam / swum
hang
hung / hung
feel
felt / felt
mistake
mistook / mistaken
grind
ground / ground
win
won / won
become
became / become
swear
swore / sworn
be
was - were / been