want to buy wants buy wants to buy的区别

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　　【want to buy】 想要买 用于第一人称,第二人称和第三人称复数

　　例如:
I want to buy some milk.我想买一些牛奶.
You want to buy some eggs.你想买一些鸡蛋.
They want to buy some apples.他们想买一些苹果.

　　【wants to buy】 想要买,用于第三人称单数

　　例如：
He wants to buy a DVD.他想买一盘DVD.
She wants to buy a dress.她想买一条裙子.

　　【wants buy】 是错误的表达,want 后面必须跟 to,表示想要的意思.