动词不定式的表达
动词不定式的四种形式?
动词不定式的四种形式?
动词不定式的四种形式是
1) 现在式:一般现在时表示的动词,有时与谓语动词表示的动作同时发生,有时发生在谓语动词的动作之后.
He seems to know this.
I hope to see you again.= I hope that I#39ll see you again. 我希望再见到你.
2) 完成式:表示的动作发生在谓语动词表示的动作之前.
I#39m sorry to have given you so much trouble.
He seems to have caught a cold.
3)进行式:表示动作正在进行,与谓语动词表示的动作同时发生.
He seems to be eating something.
4)完成进行式:
She is known to have been wreaking on the problem for many years.
一般在表示情绪的动词后加to do也表将来
动词不定式的7种结构及例句?
我们从时态形式和意义来看,动词不定式有以下四种表现形式
to do sth(原形不定式),to have done sth(完成不定式),to be doing(进行不定式)to have been doing(完成进行不定式)。
动词不定式的一般式:to do sth
——所表示的动作或状态,发生在其前的谓语动词所表示的动作或状态:同时(同时)、其前(过去)、其后(将来)
He is said to know French. (同时,动作)
He seems to be sick. (同时,状态)
动词不定式的完成式:to have done sth
——表示的动作或状态,在其前谓语动词表示的动作或状
I remember to have seen him twice. 我记得曾经看见过他两次。
He is said to have been married. 据说他已经结婚了。
动词不定式的进行式:to be doing
——仅表示与其前的谓语动词表示的动作或状态是同时发生、同时进行或同时存在。
I find him to be writing a letter. 我发觉他正在写信。
They are said to be rehearsing in the auditorium. 据说他们正在礼堂排演节目。