动词ing形式的用法及变化规则

一.动词ing形式的用法
1.正在进行时中,谓语动词后加ing. 如:I'm playing football.
2.一些特殊表达..如: be good at doing sth
enjoy doing sth.
be busy doing
feel like doing
thank you for doing
do some cooking/cleaning/reading/shopping/washing
go swimming/fishing/shopping/skating/boating
二.动词现在分词由动词原形在词尾加ing构成,其规则如下:
1)一般情况下直接加ing
think---thinking
sleep---sleeping
study---studying
speak---speaking
carry---carrying
say---saying
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 。初中学过的这类词有:begin,cut, get, hit, run, set, sit, spit, stop, swim, beg, drop, fit, nod, dig, forget, regret, rid, 等。 (visit 不是以重读闭音节结尾,不用双写) travel虽然重读第一音节,词尾音节不重读,但是现在分词仍要双写末尾辅音字母,然后再加ing ,如:travel---travelling.初中阶段此类词只有这一个。
4)以 y 结尾的动词 直接加 ing carry—— carrying enjoy—— enjoying
5)以ie结尾的动词,把ie改为y ,再加ing
die---dying lie---lying
要特别注意有些动词没有进行时态. 1、表示状态、思想、感情和感觉的动词,如:see, hear, love, know, want, hope, think等,没有进行时态。
2、当have/has作为“拥有”时,没有进行时态,但表示“开会,吃饭,玩得高兴”等意思时,可以用进行时表达。 I am having many books. (这是错误的句子)
I am having a good time. (这才是正确的句子)