各位大哥大姐有没有for sb doing sth或for sb to do sth,如果有的话是啥意思,简单一点回答我

It is + 形容词 for sb。to do sth 某人做某事怎么样 例：It is impossible for him to finish it。It is + 形容词 of sb。to do sth 某人做某事怎么样（形容词强调人的性格,品德）例:It is kind of you to help me 。Thank sb。for sth。/doing sth 例:Thank you for your help。/Thank you for helping me。