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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
have not acted
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have not acted" is correct and usable in written English.
You can use it to indicate that someone has not taken action or performed a specific task up to the present moment. Example: "Despite the warnings, they have not acted on the advice given to them."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(3)
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
Lawmakers have not acted on that recommendation.
News & Media
The employees have not acted without sympathy.
News & Media
Shareholders who feel that managers have not acted in their best interests can sue them.
News & Media
At the same time, the village-based board members have not acted reflexively.
News & Media
Unless you get out of Facebook and into someone's face, you really have not acted.
News & Media
"I am seriously concerned that the police may have not acted with good judgment," he said.
News & Media
They have not acted as a brake on the Tories, but as a prop".
News & Media
"Most customers of shared service centres have not acted as intelligent customers.
News & Media
Whatever else can be said about their behaviour, they have not acted above the law.
News & Media
"By insisting on overly customised processes [customers] have not acted as intelligent customers.
News & Media
"This SHA have not acted unlawfully and no court can interfere with their decision".
News & Media
Expert writing Tips
Best practice
Use "have not acted" to clearly indicate that a person or group has not taken any action up to the present time. Ensure the context makes it clear what action was expected or possible.
Common error
Avoid using "have not acted" when the action was expected and not taken entirely in the past. In such cases, "did not act" might be more appropriate.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have not acted" functions as a verb phrase in the present perfect tense, indicating a lack of action or intervention that extends to the present moment. Ludwig AI confirms its grammatical correctness and usability in written English.
Frequent in
News & Media
78%
Science
10%
Formal & Business
5%
Less common in
Encyclopedias
2%
Wiki
2%
Reference
2%
Ludwig's WRAP-UP
The phrase "have not acted" is a grammatically sound and commonly used expression to indicate a lack of action up to the present time. Ludwig AI confirms its validity, and it's prevalent in news and media, science, and formal business contexts. When using the phrase, ensure that the intended meaning is clear and that the context supports the present perfect tense. Consider alternatives like "did not act" or "failed to act" for different nuances. Remember to avoid using it when the inaction occurred entirely in the past. In short, "have not acted" is a versatile phrase for expressing criticism or concern about a lack of action.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
did not act
Past tense emphasizes the inaction occurred in the past.
failed to act
Highlights a failure or inability to take action.
took no action
Emphasizes the complete absence of any action.
remained inactive
Focuses on the state of being inactive or passive.
did nothing
A simpler, more direct way of expressing inaction.
have not intervened
Implies a lack of involvement in a situation.
have not responded
Focuses on the absence of a response or reaction.
have not engaged
Suggests a lack of participation or involvement.
have not taken steps
Highlights the absence of specific measures or actions.
have not moved
Suggests a lack of progress or initiative.
FAQs
How can I use "have not acted" in a sentence?
Use "have not acted" to indicate that someone or something has not taken any action up to the present moment. For example, "The authorities "have not acted" on the complaints despite numerous warnings."
What are some alternatives to "have not acted"?
Alternatives include "did not act", "failed to act", or "took no action". The best choice depends on the specific context.
When should I use "did not act" instead of "have not acted"?
"Did not act" is suitable when referring to a specific past event where action was not taken. "Have not acted" implies that action could still be taken in the present or future.
Is "have not acted" grammatically correct?
Yes, "have not acted" is grammatically correct. It is the present perfect negative form of the verb "act", indicating that an action has not occurred up to the present time.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested