2013年公共英语考试四级写作语法：现在进行时

现在进行时，通常用“now”。

形式： be verb ingwww.examｗ.com

eg: I am(not) doing my homework.

You/We/They are(not) reading.

He/She/It is(not) eating.

动词 —ing 的形式

Most verbs ing walk—walking

Verbs ending in e -e ing come—coming

Short verbs ending in a vowel a consonant run –running swim—swimming