play .playing are play are playin 不同点有哪些?play .playing are play are playin不同点有哪些?

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play .playing are play are playin 不同点有哪些?
play .playing are play are playin
不同点有哪些?

一play ①动词原形,可用做谓语,玩,打(球),拉弹(乐器) He plays football well
②名词 表演,戏剧 There is a play in the theater
二playing动词ing形式,可与be动词一起做谓语,表示正在进行:Mary is doing her homework
are … plays这种形式只可能是be动词+名词,此时用法与第一个一样.作谓语是错误的
are playing 和第二个的用法一样是表示动作的现在进行时态