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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
should not
Grammar usage guide and real-world examplesUSAGE SUMMARY
"should not" is a perfectly correct and usable part of speech in written English.
You can use this phrase to indicate something undesirable, something that would be best avoided, or an action or belief that is not recommended. For example, "You should not text and drive at the same time" or "We should not judge people for their beliefs."
✓ Grammatically correct
News & Media
Wiki
Formal & Business
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Passive conduits should not.
News & Media
It should not have.
News & Media
It should not be.
News & Media
We should not.
News & Media
One should not apologize.
News & Media
England should not tour.
News & Media
That should not happen.
News & Media
This should not be.
News & Media
They should not.
News & Media
They should not be.
News & Media
It should not".
News & Media
Expert writing Tips
Best practice
Use "should not" to express recommendations or expectations, not strict commands. For stronger prohibitions, consider "must not".
Common error
Avoid relying too heavily on "should not" in formal documents. Instead, vary your language with stronger verbs or more precise phrasing for greater impact.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "should not" functions as a modal auxiliary verb combined with negation. It expresses advice, recommendations, or expectations about what is considered undesirable or incorrect. As Ludwig AI indicates, it's grammatically correct and widely used.
Frequent in
News & Media
46%
Wiki
20%
Formal & Business
8%
Less common in
Science
14%
Reference
6%
Encyclopedias
6%
Ludwig's WRAP-UP
In summary, "should not" is a common and grammatically sound phrase used for expressing advice, recommendations, or expectations of what is undesirable. As Ludwig AI explains, it is widely used across various contexts, especially in news and media. Remember that while perfectly acceptable, varying your language in formal writing can increase impact. Consider alternatives like "ought not to" or "must not" for nuanced expression. While the phrase is often neutral, choose "must not" instead of "should not" in contexts where stronger prohibition or obligation is needed.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
ought not to
Replaces "should" with "ought to", maintaining the same level of formality and meaning.
must not
Conveys a stronger sense of prohibition or obligation than "should not".
shall not
Implies a more formal or legal prohibition.
it is not advisable to
Offers a more formal and indirect way of saying something is not recommended.
it is not recommended to
Similar to "it is not advisable to", but slightly more common.
do not
Provides a direct and simple prohibition, generally used in commands or instructions.
it would be best not to
Suggests that avoiding a certain action is the most favorable option.
it is better not to
Expresses that avoiding an action is preferable.
avoid
A concise way of suggesting that something should be steered clear of.
refrain from
A more formal way to suggest avoiding a particular action or behavior.
FAQs
How can I use "should not" in a sentence?
"Should not" is used to express that something is inadvisable or not recommended. For example, "You "should not eat" food that has been on the counter overnight".
What's a stronger alternative to "should not"?
For a stronger prohibition, consider using "must not". For example, instead of "You should not enter", you could say "You "must not enter"".
Is "shouldn't" an acceptable contraction of "should not"?
Yes, "shouldn't" is a perfectly acceptable contraction of "should not" in informal writing and speech.
When is it better to use "should not" instead of "must not"?
"Should not" is appropriate when giving advice or expressing a recommendation, while "must not" is used for expressing obligations or strict prohibitions. Using "should not" is more gentle while using "must not" expresses something is essential.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested