2015卫生职称英语备考语法：be动词的各种时态变化
2014-09-22 11:36 来源：医学教育网
2015年职称英语考试已经开始备考，本阶段应该多整理一些基础词汇和语法。为此，网校特整理了“2015年职称英语备考语法资料”供您参考，希望对您有帮助！
be（“是/存在”）动词的各种时态变化：
|
一 般 现 在 时 |
一 般 将 来 时 |
现 在 完 成 时 |
|
I am…. You are.… He/She/It is…. We/You/They are…. |
(I等各人称) will be…. I am He/She/It is going to be… We/You/They are |
I have been…. You have been…. She/he/It has been…. We/You/They have been…. |
|
一 般 过 去 时 |
过 去 将 来 时 |
过 去 完 成 时 |
|
I was…. You were.… He/She/It was…. We/You/They were…. |
(I等各人称) would be…. I was He/She/It was going to be… We/You/They were |
I had been…. You had been…. She/he/It had been…. We/You/They had been…. |
注意：句型变化时，
否定句在am/is/are/will/have/has/was/were/had/would 后面加not，而且not都可以缩写为n't （am后面not不可以缩写）；
疑问句将am/is/are/will/have/has/was/were/had/would 提前到句首。
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