113 构成各种时态的形式及用法
A 形式
动词的主要变比形式：be，was／were，been
动名词／现在分词：being
现在时：
| 肯定式 |
不定式 |
疑问式 |
I am/I'm
you are/you're
he is/he's
she is/she's
it is/it's
we are/we're
you are/you're
they are/they're |
i am not/I'm not
you are not/you're not
he is not/he's not
she is not/she's not
it is not/it's not
we are not/we're not
you are not/you're not
they are not/they're not |
am I?
are you?
is he?
is she?
is it?
are we?
are you?
are they? |
| 不定式的缩略式还可以是：you aren't, he isn't 等 |
| 不定疑问式：am I not?/aren't I? are you not?/aren't you? is he not/isn't he? |
过去时：
| 肯定式 |
不定式 |
疑问式 |
I was
you were
he/she/it was
we were
you were
they were |
I was not/wasn't
you were not/weren't
he/she/it was not/wasn't
we were not/weren't
you were not/were't
they were not/weren't |
was I?
were you?
was he/she/it?
were we?
were you?
were they? |
| 不定疑问式：was I not?/wasn't I? were you not?/weren't you? was he not?/wasn't he? 等 |
be 作普通动词用时，各种变化均与上表所列相同。其他时态变化均与普通动词的变化一致。但 be 除了在被动语态中和第115节B中所述情况下可用进行式外，通常不用进行式。
B 用于构成时态
be 用于进行式的主动形式：
He is working／will be working 等
be 用于所有被动形式：
He was follwed／is being followed 等
注意：be 可用于被动进行式：
主动：They are carrying him．
他们正抬着他。
被动：He is being carried．
他正被抬着。
（关于 be 与形容词连用于进行时，参见第115节B。） |
