第1个回答 2006-07-26
be
am - was -was
are - were -were
become - became - become
begin - bagan -begun
bite - bit - bitten
blow - blew - blown
break - broke - broken
bring - brought - brought
build - built - built
buy - bought - bought
can - could
catch - caught - caught
come - came -come
cost - cost - cost
cut - cut -cut
dig - dug - dig
do - did - done
draw - drew - drawn
drive - drove - driven
eat - ate -eatten
feed - fed -fed