单词复数形式,ing,过去式feel feed drink choose buy bring begin beat win leave eat go have sit become run read sleep lose make fall do take write say study play stop appear happen cook decide giee touch reach plan expect try listen look talk

1、名词由单数变复数的基本方法如下：
①在单数名词词尾加s。如：map → maps,boy→ boys,horse→ horses, table→ tables.
②s,o,x ,sh,ch结尾的词加es.如：class→classes, box→boxes, hero→heroes, dish→dishes, bench→benches.
[注]：少数以o结尾的词,变复数时只加s。如：photo→photos, piano→pianos.
③以辅音字母加y结尾的名词,变y为i,再加es。如：family→families, city→cities, party→parties.
④以f或fe结尾的名词,变f或fe为v,再加es。如：shelf→shelves, wolf→wolves, life→lives, knife→knives.
不规则变化：man→men, woman→women, sheep→sheep,tooth→teeth, fish→fish, child→children, ox→oxen, goose→geese
不可数名词一般没有复数形式,说明其数量时,要用有关计量名词。如：a bag of rice→two bags of rice, a piece of paper→three pieces of paper, a bottle of milk→five bottles of milk.

2..一般情况下直接加ing，比如playing，singing；
.末尾有e时，去e加ing，比如making，having；
.以一个元音字母+一个辅音字母结尾时，双写末尾辅音字母，再加ing，比如cutting，running。


3一般情况下加ed，如watched, planted, watered, pulled, climbed, picked。
以不发音字母e结尾的加d，如liked, moved, tasted。
以辅音字母加y结尾的变y为i再加ed，如study——studied。
以1个元音字母加1个辅音字母结尾的重读闭音节，双写最后一个辅音字母再加ed，如stop——stopped。

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