Should and shouldn't

We use "should" and "shouldn't" when we want to give advice or to talk about what we think is right or wrong.

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​"You should" means I think it is good idea for you to do it.

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​"You shouldn't" means I think it is a bad idea for you to do it.

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​Should is used to express the opinion of a speaker and often follows I think or I don't think.

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​Example:

​1. You look tired. I think you should take a few days off.

​2. Alice works very long hours. She should talk to her boss.

​3. You shouldn't go out so much.

​4. I shouldn't have spoken to him like that