be动词过去时加doing吗

Question

如题所述

Answer 1

be动词过去式后面不加doing，而是直接用动词的过去式表示被动语态。当表示过去进行时的时候，是be动词的过去式后面加doing。

在英语语法中，be动词意思和用法很多，一般的意思是：是，此种用法，有多种变化形式，is，am，are，was，were，being，been，to be.另外，be动词还有成为的意思。根据句子中不同的人称、数和时态，应该选择相应的be动词。

例句对照：
1.当做主动词时，“be”在性质上属于接系动词(The Linking Verb), 后面要有名词、形容词、地方副词或短语作补足语(The Complement)。例如：

The man is a science teacher.
Mary's new dresses are colourful.
I have been there before.
My motheris in the kitchen now.

2.“事/物人 +Be + 过去分词”以组成被动语态(The Passive Voice),如：
Her money in the drawer was stolen.
A number of good jobs are taken up by foreigners.
David studied in Taiwan but hasbeen trained as a language lecturer in America.
Can all the wonderful birds be found in our Bird Park.
The disobedient boywas told to stand out- side the classroom.
Steps are being taken to reduce traffic con- gestion during peak hours.
Dishonest students will be immediately dealt with.

Answer 2

过去进行时，是be动词的过去时加doing.如：
We were reading then.
He was writing a letter when I saw him.本回答被网友采纳

Answer 3

was/ were doing