fear to do sth.与 fear doing sth 有什么区别?

fear to do sth.害怕去做某事（还没有去做）
fear doing sth 害怕做某事（做过了）
其他用法：for fear of
1.担忧
She asked us not to be noisy for fear of waking the baby.
她要我们别吵闹,惟恐吵醒婴儿.
in fear and trembling
1.非常恐惧
They stood there in fear and trembling.
他们站在那儿,惊恐万状.
in fear of
1.怕
We are in fear of more rain.
我们担心再下雨.
put the fear of God into sb.
1.恐吓某人
The new teacher has put the fear of God into his pupils.
新来的教师把学生给镇住了.
without fear or favor
1.公正地
In this company,promotions are given without fear or favor.
在这家公司里,职位升迁是很公平的.

to do害怕去做某事（但还没有做）
doing 害怕做过的某事

fear to do sth害怕去做某事 fear doing sth 害怕做某事

fear to do sth是害怕将要做的事情
fear doing sth是害怕做过的事情