`1` You should go to see doctor regularly .

`2` Which dress should I wear today ? 

`3` The teacher think Jim should study harder .

`4` The boys  shouldn't climb up the wall

`5` Should I watch TV or go out with my friends now ? 

`6` If Jim is sick , he should stay at home . ( câu điều kiện loại 1 ,If + mệnh đề hiện tại đơn, S + should / will / ...+ v + O ) 

`7` How much water should we drink every day ? 

`8` What shouldn't I do at Chinese restaurant ? 

`9`  You should inform your parents befor you go .

`10` Josh shouldn't devote all his free time to playing games 

-> ( + ) S + should + V + O 

(-) S + shouldn't + V + O 

(?) Should + S + V + O ? 

-> should + V (bare ) : nên làm gì 

( câu nào ko có not ta dùng should ,  còn câu nào có not ta dùng Shouldn't ) 

@ Dorris