新目標(biāo)英語七年級(jí)下復(fù)習(xí)資料
begin began begun
【特例】win won won
d)過去式以ought或aught結(jié)尾
think thought thought
bring brought brought
buy bought bought
fight fought fought
catch caught caught
teach taught taught
【注意】上述動(dòng)詞過去式的末尾是ought還是aught,只要記住“有a則a,無a則o”,即原形中有a的,則變?yōu)閍ught,否則為ought.
e)將動(dòng)詞原形中的字母組合ee去掉一個(gè),詞尾加上t,變成過去式。
feel felt felt
sweep swept swept
sleep slept slept