Updated on October 29, 2025

Should vs Shouldn't

We use should to give advice, make suggestions, or say what is right or expected. Should is not as strong as must - it’s a gentle suggestion. We use shouldn’t to say that something is not a good idea or not right.

Table of Contents

Exercises

Explanation

When to Use “Should”

Use should when something is a good idea or the right thing to do.

You should drink more water every day.
He should call his parents more often.
We should help our classmates when they need it.
They should go to bed earlier on weekdays.

When to Use “Shouldn’t”

Use shouldn’t (should not) to talk about something that is a bad idea or a mistake.

You shouldn’t eat junk food all the time.
He shouldn’t watch TV before his exam.
We shouldn’t be late for school.
They shouldn’t argue with their teacher.

Quick Comparison

Use

Meaning

Example

Should

Good idea / advice

You should save some money.

Shouldn’t

Bad idea / warning

You shouldn’t waste your time.

Form

Type

Structure

Example

Affirmative

Subject + should + verb

You should listen carefully.

Negative

Subject + shouldn’t + verb

You shouldn’t talk loudly.

Question

Should + subject + verb?

Should I take an umbrella?

Tip

  • Should = suggestion → You should try this dessert!

  • Must = rule → You must wear a helmet when riding a bike.

Grammar References
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