关于be afraidbe afraid 一共有几种句型.(1)be afraid of sth(2)be afraid

估计你从上面看到我这儿早就迷糊了.
简单一点,我只说说afraid of doing sth和afraid to do sth的区别：
I am afraid to jump down,because I am afraid of breaking my leg.
把它默念30遍,然后就知道其差别了.
of后结的是“（因为做某事而导致的）后果）”.
这儿是由jump down引起的.
你听人家说过“我敢摔断我的腿”吗?
——————————
小测验：－－你决定是用be afraid of doing 还是be afraid to do（答案就不用了吧?）
1)
————干吗不开灯?
————嘘!我怕把爸爸吵醒.
2）－－－进来啊!
－－－我不敢靠近你家的狗.
－－－没事,它只是叫叫而已.
－－－－－——————
前面我说的都不到位,最后来看英语介词词典专家（Frederick T.Wood)的经典解释：
1）“of ”indicates the thing that causes fear.
2)"to" indicates the things that fear inhibits a person from doing something.

据我所知,应该没有.
(1)(2)译为:怕,害怕
但若谈到某事的发生是出乎意料之外的,或者这事的发生不是我们所希望或乐意的,则只能用(2)结构
(3)译为:不敢做某事,害怕做某事
造句:(2)I am afraid of falling into the river.
(3)She is afraid to live alone.
另外还有...

没有be afraid doing
be afraid of sth 害怕某东西
i'm afraid of ghosts我害怕鬼
be afraid of doing sth 害怕,担心某事发生
be afraid to do sth 没有胆量，不敢做某事

真是中文太容易引起歧义了。
举个例子
I am afraid ...

be afraid to do sth. 因为害怕而不敢做某事。
例如：I used to be afraid to walk alone at night.
be afraid of (doing) sth. 担心或忧虑某事发生。
例如：I am afraid of an accident.
I am afraid of being caught.

没有~~
be afraid of doing sth
是表示对于做某事很害怕~~所以OF不能省~~又因为OF是介词~~所以是
be afraid of doing sth
be afraid of doing sth
表示对于做某事很害怕
I am afraid of swimming.
be afraid of sth
对某...

be afraid of sth 害怕某东西
i'm afraid of darkness我害怕天黑
be afraid of doing sth 害怕做某事,带客观的因素
i'm afraid of walking out alone at night我晚上害怕一个人出去
be afraid to do sth 不敢做某事,带着主观的因素
He is so...