`11` behave

`-` should + V-inf : nên làm gì

`12` to eat

`-` Would you like + to V ? 

`13` to decorate

`-` take sb time to do sth : ai đó mất bao nhiêu thời gian làm gì

`14` learning

`-` spend time doing sth : dành thời gian làm gì

`15` to get 

`16` to say 

`-` I don't know what + to V

`17` put

`-` let sb do sth 

`18` laugh

`-` make sb + adj/V

`19` to watch 

`-` want + N/to V

`20` to see

`-` It's + adj + (for sb) + to V 

`11.` behave (v): hành xử

-` Cấu trúc: should + V..

`12.` to eat

`-` eat (v): ăn

`-` Cấu trúc: Would like + to V...

`13.` to decorate

`-` decorate (v): trang trí

`-` Cấu trúc: take sb (time) + to V

`14.` learning

`-` learn (v): học

`-` Cấu trúc: spend (time) + Ving

`15.` to get

`-` get (v): nhận, có,...

`16.` to say

`-` Cấu trúc: don't know what + to V

`17.` put

`-` put on (v): mặc

`-` Cấu trúc: Let + O + V

`18.` laugh

`-` laugh (v): cười

`-` Cấu trúc: make sb + V

`19.` to watch

`-` watch (v): xem

`-` Cấu trúc: want + to V

`20.` to see

`-` see (v): thấy

`-` Cấu trúc: It's adj + to V