so as to ,so...as to ,so that ,so ...that,such that ,such...

as as to 为了 He works hard so as to succeed.
so...as to 如此,以至于 He got so early as to catch the early bus.
还有个句型would you be so kind as to...请你...好吗?
so that...以至于,以便于,Can you open the window so that I can get some fresh air?
such that 一般不用,除非特殊情况
such...as to意思等同于 so...as to 只要注意什么时候用such,什么时候用so
比如：He is such a clever student as to be able to pass every exam.

so as to 为了，做目地状语，等于in order to后接动词原形构成不定式，不放在句首。 He got up early so as to catch the early bus.
so,,,as to 如此，以至于。做结果状语 He is so careless as to make many mistakes in the exam.
so that 以便，为了。引...