1.动词词尾直接加-ing构成:wash—washing,watch—watching
2.以-e结尾的动词(1)一般应去掉e再加ing:write—writing,use—using,make—making,stare—staring,plane—planing,have—having,save—saving, produce—producing,(2)以-ee,结尾的动词加-ing时应保留词尾e: see—seeing,flee—fleeing free—freeing
ing有几种加法?
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+元音字母+辅音字母结尾的重读闭音节,双写末尾辅音字符,然后加ing,如sit→sitting put→putting stop→stopping swim→swimming 等。
,以-ie结尾的动词应先将e去掉,将i变成y然后再加-ing:die—dying,tie—tying,vie—vying,lie—lying
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你记住了吗?
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