第2个回答 2011-06-21
work works working worked
eat eats eating ate
sing sings singing sang
hlep helps helping helped
have has having had
make makes making made
take takes taking took
love loves loving loved
come comes coming came
write writes writing wrote
give gives giving gave
live lives living lived
see sees seeing saw
play plays playing played
say says saying said
buy buys buying bought
fly flies flying flew
swim swims swimming swam
stop stops stopping stopped
shop shops shopping shopped
get gets getting got
run runs running ran
begin begins beginning began
wash washes washing washed
watch watches watching watched
finish finishes finishing finished
teath teaches teaching taught
fish fishes fishing fished
read reads reading read
第3个回答 2011-06-21
第三人称单数动词规则：
1. 第三人称单数，动词一般情况下加s。
2. 以sh,ch结尾的加 es。
3. 辅音加o结尾的加 es。
4. 辅音加y结尾的，把改为 i，再加es。
5. 特殊 have- has
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
规则动词的过去式变化如下：
1、一般情况下，动词词尾加 -ed ，如：
work ---worked play---played wanted----wanted act----acted
2、以不发音的 -e 结尾动词，动词词尾加 -d，如：
live---lived move----moved taste---tasted hope---hoped
3、以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如：
study---studied copy---copied cry---cried carry---carried
4、以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加 -ed，如：
stop ---stopped
5、不规则动词的过去式变化规律性不强，须多加记忆。
go – went make – made get – got buy - bought come - came fly-flew