He studies hard because he wants to get good marks.

`=>` He studies hard so as to get good marks.

`=>` He studies hard in order to get good marks.

`=>` He studies hard so that he can get good marks.

`-` Cấu trúc: 

+) so as to + Vinf  : để mà `->` chỉ mục đích

+) in order to + Vinf : để mà `->` chỉ mục đích

+) so that + S + V : để mà `->` chỉ mục đích

`Dịch`: Anh ấy học chăm để đạt điểm tốt.

`->` $\text{He studies hard so as to get good grades.}$

$\text{S + V(s/es) + In order / So as + (not) to + V-inf.}$

`->` $\text{He studies hard in order to get good grades.}$

S + V(s/es) + In order / So as + (not) to + V-inf.

$\text{S + V(s/es) + In order / So as + (not) to + V-inf.}$

`->` $\text{He studies hard so that he could get good grades.}$

$\text{S + V(s/es) + so that + S + modal verb + V-inf.}$

$#Angelic$