advise sb to do sth
advise doing sth
suggest sb to do sth
suggest doing sth
advise that 后面的从句用动词原形或SHOULD +原形
They adivesed me that I should study harder.
详情请参阅英语语法之虚拟语气。
advice是名词,advise是动词,所以是advise to do sth.
suggest没有不定式用法,只有suggest doing sth和suggest (that)sb (should)do两种用法,advise to do sth,advise doing sth
2楼正解