动词的第三人称单数形式_动词第三人称单数形式

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动词的第三人称单数形式（简称单三式）

1．一般在词尾加“-s”help-helps make-makes ride-rides know-knows 2．在s z x sh ch 结尾的词在词尾加“-es”push-pushes pa-paes watch-watches wash-washes 3．以“元音字母＋y”结尾时,加“-s”；以“辅音字母＋y”结尾时,变 y为i,再加“-es”play-plays stay-stays study-studies carry-carries 4．以“辅音字母＋o”结尾的词,多数在词尾加“-es”go-goes do-does 5．be动词的单三式为is 6．have动词的单三式为has 补充

:不定式的省略:Wil you join us?你要同我们一道去吗? I should love to(join you).我愿意.The boy wanted to ride his bicycle in the street but his mother told him not to.那个男孩想要到街道上骑自行车,但是他的妈妈叫他不要去.Alice,why didn't you come yesterday?爱丽斯,你昨天为什么没来? I was going to,but I had an unexpected visitor.我本来是要来的,但是家里突然来了一个客人.