動詞+疑問代(副)詞+不定式這類動詞

常見的有：advise,decide, discuss, find out, forget, inquire, know, learn, regard, remember, see, settle, teach, tell, think(=consider), understand, wonder等。這些疑問代(副)詞有what, when, where, which, how, whether等,但不包括why,如：

He does not know how to go there

when to speak before strangers.

who(m) to visit.

which one to choose.

You can decide whether to go forward or stay here.

when to see a doctor.

I will show you what to do.

where to go.

how to deal with it.

其中,1)和2)中不定式的邏輯主語仍是句子的主語,分別為He和You;而3)中不定式的邏輯主語則不是句子的主語I,而是賓語you.

9) The director of this organization must know .

[A] to manage money, sell his product and beable to satisfy stockholders

[B] managing money, selling, and be able to satisfy the stockholders

[C] how to manage money, sell his product, and satisfy the stockholders

[D] money management, selling and being able to satisfy the stockholders

10) To tell you the truth, I really don't know how deal with a man like him.

[A] can I[B] well[C] to[D] much

3、有時，不定式跟作主語時一樣，可由it來代替，而把不定式放到后面去He makes it a rule to take a walk before breakfast.

I think it interesting to play football while it is snowing hard.

We find it difficult to get everything ready before the time you require.

She cosiders it important to make friends with them.

I don't think it necessary to argue with them on this problem.

4、有時THERE和TO BE連用表示“有”或“存在(某情況)”等

It is impossible for there to be any more.

Would you like there to be a meeting to discuss the problem?

I expect there to be no argument about this?

有時在個別的介詞后可用“疑問詞+不定式結構”作其賓語

He has his own decision of how to do it.