动词三单形式+s、+es、+ies.

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动词三单形式+s、+es、+ies.

1.通常直接后面加s,如:play-plays; say-says
2.以s/x/ch/sh/o结尾的,后面加es,如watch-watches; wash-washes; do-does
3.以辅音字母加y结尾的,改y为i,再加es,如:carry-carries; worry-worries; study-studies