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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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shouldn't

Grammar usage guide and real-world examples

USAGE SUMMARY

'shouldn't' is correct and usable in written English.
You can use 'shouldn't' to express that something is not recommended, or to express doubt about the correctness of something. For example: "You should't drive without a valid license."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

"He shouldn't".

News & Media

The New Yorker

We shouldn't.

And shouldn't.

News & Media

The New Yorker

They shouldn't.

News & Media

The New York Times

Shouldn't have.

News & Media

The New Yorker

Shouldn't it?

You shouldn't".

News & Media

The Economist

Voters shouldn't.

News & Media

The New Yorker

Shouldn't he be friendlier?

News & Media

The Guardian

It shouldn't fool anyone.

News & Media

The New York Times

Google shouldn't be shocked.

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

Use "shouldn't" to give advice or express an opinion about what is the best course of action, avoiding overly strong or commanding language.

Common error

Avoid using "shouldn't" when a stronger prohibition is necessary. "Must not" or "cannot" are more appropriate when something is strictly forbidden.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.8/5

Expert rating

Real-world application tested

Linguistic Context

The primary grammatical function of "shouldn't" is to express advisability, suggestion, or mild obligation in the negative form. It indicates that something is not recommended or appropriate. As evidenced by Ludwig, it is a common contraction.

Expression frequency: Very common

Frequent in

News & Media

62%

Science

20%

Formal & Business

5%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

"Shouldn't", a contraction of "should not", is a grammatically sound and widely used term for expressing advisability or mild obligation in the negative. As Ludwig AI confirms, it's deemed correct for use in written English, offering a way to recommend against an action or express doubt. Its versatility shines through examples from news, science, and general discourse. Alternatives, like "ought not to" or "must not", can offer different levels of formality or strength. When using "shouldn't", remember it offers guidance, but not a strict prohibition.

FAQs

How to use "shouldn't" in a sentence?

"Shouldn't" is a contraction of "should not" and is used to give advice or express an opinion. For example, "You "shouldn't eat that" before bed" suggests it's not a good idea to eat before bed.

What can I say instead of "shouldn't"?

Alternatives to "shouldn't" include "ought not to" (more formal), "must not" (stronger prohibition), or "it is not advisable to" (formal recommendation against something).

Is "shouldn't of" grammatically correct?

No, "shouldn't of" is incorrect. The correct form is "shouldn't have". For example, "I "shouldn't have done that"" is correct, while "I shouldn't of done that" is not.

What's the difference between "shouldn't" and "mustn't"?

"Shouldn't" implies a recommendation or advice against something, while "must not" indicates a stronger prohibition or obligation not to do something. "You shouldn't drive so fast" suggests it's a bad idea, but "You must not drive drunk" is a strict rule.

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Source & Trust

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Authority and reliability

4.8/5

Expert rating

Real-world application tested

Most frequent sentences: