英语中的三单形式规则包括:动词以s, x, ch, sh, o结尾时,词尾加“ES”;动词以辅音字母+y结尾时,将“y”变为“i”再加“ES”;动词以辅音字母+o结尾时,词尾加“ES”。除此之外,动词词尾一般只需加“S”。
加ES的情况
1. 动词以s, x, ch, sh, o结尾时
当动词以s, x, ch, sh, o 结尾时,我们需要在词尾加上“ES”。例如:
- he passes the ball.
- she fixes the computer.
- it catches the mouse.
- he washes the dishes.
- she goes to work early.
2. 动词以辅音字母+y结尾时
当动词以辅音字母+y结尾时,我们需要将“y”变成“i”,再加上“ES”。例如:
- he tries his best.
- she cries in the movie.
- it flies in the sky.
3. 动词以辅音字母+o结尾时
当动词以辅音字母+o结尾时,我们需要在词尾加上“ES”。例如:
- he goes to the store.
- she does her homework.
- it echoes in the valley.
不加ES的情况
除了以上情况,其他情况下的动词只需要在词尾加上“S”就可以了。例如:
- he watches TV.
- she reads a book.
- it sleeps on the sofa.