help-helped
很容易的,下面介紹一個(gè)學(xué)習(xí)動(dòng)詞形態(tài)的方法,希望對(duì)你有用處!
動(dòng)詞的基本形式
動(dòng)詞除原形外,還有過(guò)去式、過(guò)去分詞和現(xiàn)在分詞三種形式.
（一）過(guò)去式和過(guò)去分詞的構(gòu)成
1．一般情況下在原形后加-ed.如：work-worked,help-helped.
2．以e結(jié)尾的單詞,在原形后加-d.如：like-liked,joke-joked,hope-hoped.
3.以"輔音字母+y"結(jié)尾的單詞,變y為i再加-ed.如：study-studied,carry-carried,copy-copied.
4．以重讀閉音節(jié)、末尾只有一個(gè)輔音字母結(jié)尾的單詞,雙寫(xiě)末尾的輔音字母再加-ed.如：stop-stopped,prefer-preferred,admit-admitted,plan-planned.
有些動(dòng)詞的過(guò)去式和過(guò)去分詞有特殊的形式.
cost-cost-cost
meet-met- met
catch-caught-caught
rise-rose-risen
drive-drove- driven
get-got-got/gotten
leave-left-left
smell-smelt/smelled-smelt/smelled
tell-told-told
take-took-taken