woman-writer(复数) -s
woman-doctor(复数) -s
passer-by(复数) passers-by
phenomenon(复数) phenomena
man-cook(复数) -s
cost(过去分词) cost
eat(过去分词) eaten
forget(过去分词)forgotten
hurt(过去分词) hurt
grow(过去分词) grown
bear(过去分词) born/borne
win (过去分词) won
lean(过去分词) lean
know(过去分词) known
think(过去式) thought
break(过去式) broke
burn(过去式) burned