Should and Shouldn't

 Use

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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.