词形变化：take,wish,worry,use,borrow,give,study,begin,eat,catch,s

原型-第三人称单数-现在分词-过去式-过去分词
take-takes-taking-took-taken
wish-wishes-wishing-wished-wished
worry-worries-worrying-worried-worried
use-uses-using-used-used
borrow-borrows-borrowing-borrowed-borrowed
give-gives-giving-gave-given
study-studies-studying-studied-studied
begin-begins-beginning-began-begun
eat-eats-eating-ate-eaten
catch-catches-catching-caught-caught
see-sees-seeing-saw-seen
come-comes-coming-came-came