动词现在分词由动词原形在词尾加ing构成,其规则如下：
构成规则 例词
1.一般情况下直接加ing
think---thinking
sleep---sleeping
study---studying
speak---speaking
say---saying
carry---carrying
2.以不发音的字母e结尾的单词,去掉字母e,再加ing
wake---waking
make---making
come---coming
take---taking
leave---leaving
have---having
3.以重读闭音节结尾,呈现“辅,元,辅”结构的动词,先双写末尾的辅音字母,再加ing
stop---stopping
sit---sitting
run---running
forget---forgetting
begin---beginning
4.以ie结尾的动词,把ie改为y ,再加ing
die---dying
lie---lying
PS：以重读闭音节结尾,呈现“辅,元,辅”结构的动词,先双写末尾的辅音字母,再加ing .常见的这类词有：bigin,cut,get,hit,run,set,sit,spit,stop,swim,beg,drop,fit,nod,dig,
forget,regret,rid,等.