listen-listens, say-says, read-reads, write-writes。

2、以 ch, sh, s, x, o 结尾的动词，在后面加 es。如：

touch-touches, wash-washes, wish-wishes, guess-guesses, fix-fixes, do-does。

3、以辅音字母 +y 结尾的动词，把y变为i再加 es。如：study-studies, try-tries, carry-carries, fly-flies, cry-cries, worry-worries。

4、特殊变形：

have在遇到主语是第三人称单数时，要改用has。如：

She has an apple. 她有一个苹果。

含有动词三单的句型变换

1、将含有动词第三人称单数形式的句子变否定句时，要用 doesn't + 动词原形，如：

He goes to school at six in the morning.

He doesn't go to school at six in the morning.

2、对含有动词第三人称单数形式的句子进行提问时，要用助动词 does，如：

She goes home at five every day.（对划线提问）

What time does she go home every day?