动词过去式不规则变化的词

AB型

can could shall should

will would may might

AAA型

cost cost cost

cut cut cut

hit hit hit

hurt hurt hurt

let let let

must must must

put put put

set set set

shut shut shut

read read read

AAB型

beat beat beaten

ABA型

become became become

come came come

run ran run

ABB型

bring brought brought

buy bought bought

think thought thought

catch caught caught

teach taught taught

build built built

lend lent lent

send sent sent

spend spent spent

dig dug