作业帮写出下列动词的ing形式,第三人称单数形式及过去式wash cleanvisitplaylimbwatch快快，今天。不现在就给答案
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写出下列动词的ing形式,第三人称单数形式及过去式wash cleanvisitplaylimbwatch快快，今天。不现在就给答案
写出下列动词的ing形式,第三人称单数形式及过去式
wash
clean
visit
play
limb
watch
快快，今天。不现在就给答案
写出下列动词的ing形式,第三人称单数形式及过去式wash cleanvisitplaylimbwatch快快，今天。不现在就给答案
washing washes washed
cleaning cleans cleaned
vitising visits visited
playing plays played
limbing limbs limbed
watching watches watched
现在分词一般都按他的规律来走,很少有特殊的、
a）在一般情况下,在动词原形后直接加词尾 –ing.
名词变复数
．一般名词复数是在名词后面加上“s”,如map→maps,bag→bags等；
2．以s,sh,ch,x等结尾的词加“es”,如bus→buses,watch→watches等；
3．以辅音字母＋y结尾的词,变y为i加es,如baby→babies等；以元音字母＋ y结尾的名词变复数时,直接加s变复数,如monkey→monkeys,holiday→holidays,storey→storeys（楼层）；
4．以o 结尾的名词变复数时：
a）加s的名词有：photo→photos ,piano→pianos,radio→radios,zoo→zoos
b）加es的名词有：
potato→potatoes tomato→tomatoes
5．以f或fe结尾的名词变复数时：
a）加s的名词有：
belief→beliefs roof→roofs
safe→safes gulf→gulfs
b）去掉f,fe 加ves的名词有：
half→halves knife→knives
leaf→leaves wolf→wolves
wife→wives life→lives thief→thieves
eg.go – going; do – doing; ask – asking; read --- reading
特别要注意：这和第三人称一般现在时的词尾变化不同,动词词尾如为“辅音字母 + y” 时不变,在其后直接加 –ing.
eg.study – studying; carry – carrying; fly – flying; worry – worrying;
b） 在以不发音的e 结尾的动词后,去掉e,再加- ing.
eg.come – coming live – living dance – dancing make – making
c）在闭音节的单音节动词后、以重读闭音节结尾的多音节动词,而末尾只有一个辅音字母时,将这个辅音字母双写（x除外）,然后再加 –ing.
sit – sitting; run – running; begin – beginning; forget – forgetting
d）在少数几个以 –ie 结尾的动词后：须将–ie 变作y,再加- ing.(这些动词词典一般均注明)
eg.die – dying; tie – tying lie – lying
washing washes washed
cleaning cleans cleaned
visiting visits visited
playing plays played
limbing limbs limbed
watching watches watched
ing形式 单三形式 过去式
washing washes washed
cleaning cleans cleaned
visiting visits visited
playing plays played
limbing limbs limbed
watching watches watched