We use
should and
shouldn't to give advice or to talk about what we think is right or wrong.
You should means something like
I think it is a good idea for you to do it.You shouldn't means something like
I think it is a bad idea for you to do it.Should is used to express the opinion of a speaker and often follows
I thinkor
I don't think.
Examples
You look tired. I think you should take a few days off.
Alice works very long hours. She should to talk to her boss.
- I have an English test tomorrow.
- I shouldn't worry if I were you. You have worked really hard.
- I never have enough money.
- I don't think you should go out so much.
Should - Quick Grammar Note
To give advice to someone you can also say:
I should do it if I were you.
I shouldn't be so rude, if I were you.
When you regret not doing something in the past, you can say:
I shouldn't have spoken to him like that.
I should have apologized earlier.
