第三人称单数现在分词过去式 　　riderideriing 　　trytriestryingtried 　　diedies无died 　　pushpushes 　　crycriescryingcries 　　enterentersenteringentering 　　pickpickspickingpicked 　　playplaysplayingplayed 　　countcountscountingcounted 　　singsingssingingsang 　　telltellstellingtold 　　sellsallssallingsold 　　costcosts无cost 　　spendspendsspendingspent 　　write 　　speak 　　say 　　fly 　　stand 　　动词的现在分词及动名词(规则) 　　1．一般在词尾加“-ing”help-helpinglook-lookingplant-plantingwork-working 　　2．以不发音e结尾的词,先去e,再加“-ing”live-livinghope-hopingchange-changing 　　3．以“y”结尾时直接加“-ing”play-playingstay-stayingstudy-studyingcarry-carrying 　　4．以ie结尾的动词,先将ie变为y,再加ing.die-dyinglie-lyingtie-tying 　　5．以重读闭音节结尾,末尾只有一个辅音字母的词,要双写这个辅音字母,然后再加ing. 　　drop-droppingbegin-beginningrun-runningprefer-preferring 　　6．少数双音节动词,尽管重音不在后面,可以双写末尾的辅音字母,然后再加ing.travel-traveling（美语）旅行 　　travel-travelling（英语）旅行 　　动词的过去式和过去分词(规则) 　　1．一般在词尾加“-ed”help-helped-helpedlook-looked-lookedplant-planted-plantedwork-worked-worked2．以不发音e结尾的词加“-d”live-lived-livedhope-hoped-hopedchange-changed-changed 　　3．以“元音字母＋y”结尾时,加“-ed”；以“辅音字母＋y”结尾时,变y为i,再加“-ed” 　　play-played-playedstay-stayed-stayedstudy-studied-studiedcarry-carried-carried 　　4．以重读闭音节结尾,末尾只有一个辅音字母的词,要双写这个辅音字母,然后再加ed. 　　drop-dropped-droppedstop-stopped-stoppedplan-planned-plannedprefer-preferred-preferred 　　5．少数双音节动词,尽管重音不在后面,可以双写末尾的辅音字母,然后再加ed 　　travel-traveled-traveled（美语）travel-travelled-travelled（英语）