172 形式
一般现在时的肯定式与否定式的形式相同,但第三人称单数要加 s:
肯定式 |
否定式 |
疑问式 |
否定疑问式 |
I work
you work
he/she/it works
we work
you work
they work |
I do not work
you do not work
he/she/it does not work
we do not work
you do not work
they do not work |
do I work?
do you work?
does he/she/it work?
do we work?
do you work?
do they work? |
do I not work?
do you not work?
does he/she/it not work?
do we not work?
do you not work?
do they not work? |
不规则动词的一般现在时形式的构成与规则动词的构成完全相同。
B 缩略形式:动词 do 在否定式和否定疑问式中通常用缩略形式(参见第103节A):
I don't work.
He doesn't work.
Don't I work?
Doesn't he work?
C 拼写注意事项
以 ss,sh,ch,x 和。结尾的动词,在构成第三人称单数时,要加 es:
I kiss, he kisses
I box,he boxes
I rush, he rushes
I do,he does
I watch, he watches
I go, he goes
以字母 y 结尾的动词,y 前为辅音字母时,要把y变为 i 再加 es:
I carry, he carries
I copy,he copies
I try,he tries
以字母 y 结尾的动词,y 前为元音字母时,按照通常规则变化:
I obey, he obeys
I say, he says |