给下列单词归类
1.drink 2. go 3.stay 4..look 5. buy 6.have 7.pass 8.carry 9.come 10.watch 11. Plant 12.fly 13.study 14.brush 15.do 16.Teach 17. swim 18.jump 19.walk 20.eat 21.copy 22. write 23 sing
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动词三单结尾加“ s” _______________________________________________
动词三单结尾加“es”________________________________________________
动词三单结尾去“y”变“ies”________________________________________
特殊情况:________________________________________