Should / Shouldn't use
Should / shouldn’t is used to give advice, make a recommendation, say what is right, sensible, or a good idea, and also to ask for advice.
Should / Shouldn't Form
Should is a modal verb. After should and shouldn’t, we always use the base form of the verb (V1) without to. The form should stays the same for all subjects.
Subject + should + V1
Subject + shouldn’t + V1
Should / Shouldn't Rule
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Should is used to give advice or a gentle recommendation.
You should get some rest.
We should leave a little earlier.
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Shouldn’t is used when we advise someone not to do something.
You shouldn’t skip breakfast every day.
He shouldn’t drive when he is very tired.
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In questions, should is often used to ask for advice
or find out which option is better.
Should I send him a message?
What should we do now?
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Should is usually softer than must.
Should gives advice or a recommendation, while must more often expresses
strong necessity, a rule, or an obligation.
✅ You should sleep more. (advice)✅ You must wear a seat belt. (rule / obligation)
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After should, we use only the base verb form without to.
❌ You should to go home.✅ You should go home.
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The form should is the same with all subjects: I should, he should,
they should. We do not add -s.
✅ She should call him.❌ She shoulds call him.
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Should can also express an expectation or something we think
will probably happen if things are normal.
The train should arrive in ten minutes.
You should feel better after some rest.
Should / Shouldn't Negation
Negation is formed with should not or the short form shouldn’t. After them, we still use V1.
Subject + should not / shouldn’t + V1
Should / Shouldn't Questions
In questions, should comes before the subject. We use these questions to ask for advice, a recommendation, or clarify the best thing to do.
Should + subject + V1?
Wh-word + should + subject + V1?