Should   X  Shouldn´t 

Should - měl by

• You should do your homework.

• You should give some advice.

• You should put a hat on.

• You should go to the dentist´s.

• You should help your mother.

Shouldn´t - neměl by

• You shouldn´t eat too much fat meal.

• You shouldn´t stay up late.

• You shouldn´t go to bed so early.

• You shouldn´t cook diner.

• You shouldn´t drink so cold water.