be（am，is ，are） --- was， were ---- been
beat ----beat ------beaten
become ----became -----become
begin---- begin -----begun
blow ---blew ---- blown
break --- broke --- broken
bring---- brought---- brought
build --- built ---built
burn --- burnt ----burnt
burn ---- burned -- burned
buy --- bought ---bought
catch ---- caught --- caught
choose --- chose --- chosen
come --- came ---come
cost-- cost -- cost
cut --- cut--- cut
dig --- dug--- dug
do --- did--- done
draw --drew --drawn
drive --drove---- driven
eat --- ate---- eaten
fall---- fell---- fallen
feed--- fed ---fed
feel --- felt --- felt
fight ---fought --- fought
find ---found --- found
fly ---flew --flown
forget--- forgot ---- forgotten
get --- got ---got
give--- gave --- given
go ---went--- gone
grow--- grew --- grown
hang --- hung --- hung
have --- had ---had
hear --- heard ---heard
hide--- hid ---hidden
hold -- held ---held
hurt-- hurt-- hurt
keep--- kept--- kept
know--- knew ---known
lead ---led --- led
learn ---- learnt ----learnt
learn --- learned--- learned
leave-- left --- left
let--- let--- let
lie ---lay---- lain
light --- lit ----lit
light --lighted --- lighted
lose --- lost --- lost
make ---made ---made
mean ---meant--- meant
meet-- met ---met
pay ---paid --- paid
put--- put ---put
read--- read--- read
ride ---rode ---ridden
ring --- rang ---rung
rise ---rose--- risen
run--- ran-- run
say ---said ---said
see--- saw --- seen
sell--- sold ---sold
send ---sent ---sent
set ---set--- set
shake--- shook---- shaken
shine--- shone---- shone
shoot--- shot ---shot
sing --sang ---sung
sit--- sat ---sat
sleep--- slept ---slept
smell--- smelt ---smelt
smell ---smelled--- smelled
speak ---spoke ---spoken
spell--- spelt ---spelt
spell ---spelled ---spelled
spend ---spent ----spent
spread---spread--- spread
stand--- stood ---stood
steal ---stole ---stolen
stick ---stuck--- stuck
swim--- swam ---swum
take--- took--- taken
teach---- taught---- taught
tell ---told ----told
think ---thought---- thought
throw----- threw ---- thrown
understand---- understood ---- understood
wake--- woke ----waken
wear ---- wore ---- worn
win--- won ---- won
write---- wrote---- written
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