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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
cannot be able
Grammar usage guide and real-world examplesUSAGE SUMMARY
? The phrase "cannot be able" is grammatically incorrect and should not be used in written English.
It is redundant and can be corrected to either "cannot" or "not be able to." Example: She cannot be able to attend the party tomorrow because she has a conflicting schedule. Correction: She cannot attend the party tomorrow because she has a conflicting schedule.
⚠ May contain grammatical issues
Science
News & Media
Wiki
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
16 human-written examples
Attempts have also been made to propose a real forecast experiment, which, however, often cannot be able to adapt to the non-stationary changes in runoff due to the lack of adaptive ability.
Science
Therefore, we have researched on the Human Machine Interaction using Physical Human Body Gestures and came up to proposed solution of the said issue as Low Cost Retina Controlled Computer Using Head mount and Wrist Tilt for Persons who are Paralyzed and cannot be able to move their hands and even they can't able to walk.
Science
For this reason, we cannot be able to prove the optimality mathematically and also cannot be able to find any closed form solution.
The bidders cannot be able to modify and/or deny the submitted bids.
Consequently, these feedstock cannot be able to meet the amazing rising market demand for ARA.
This means that without the University of Dar es Salaam and other established public universities, these private universities and university colleges cannot be able to run their programmes.
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
I always make sure to save enough…You cannot really be able to determine how much money you will earn in a day and therefore how much will be saved per day, but I always try to save 500 shillings per day when the circumstances allow it.
Science
"You cannot expect to be able to solve those problems simply by splashing money around".
News & Media
Social workers, like others, cannot guarantee to be able to protect children (just as no doctor can guarantee that a patient will not die or a police officer cannot guarantee to be able to clear up all crimes).
News & Media
"Even I, as head of state in this very tense situation, cannot claim to be able to control those elements".
News & Media
Put simply you cannot expect to be able to use the fruit of someone else's labours for your own benefit.
News & Media
Expert writing Tips
Best practice
Avoid using "cannot be able" in your writing; it's grammatically incorrect. Choose either "cannot" or "is/are not able to" for clarity and correctness.
Common error
The phrase "cannot be able" includes redundant words. Simplify your sentence by removing "be able", as "cannot" already implies an inability to do something.
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "cannot be able" functions as a negative expression indicating a lack of capacity or possibility. While grammatically incorrect, Ludwig shows examples of its occurrence in various contexts, revealing a common, though flawed, attempt to convey inability.
Frequent in
Science
43%
News & Media
37%
Wiki
20%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, while the phrase "cannot be able" appears with some frequency in various sources according to Ludwig, it is considered grammatically incorrect and redundant. Ludwig AI reinforces this, advising that either "cannot" or "is/are not able to" should be used instead. Though prevalent in science and news media, it's best to avoid "cannot be able" in formal writing to ensure clarity and grammatical accuracy. Using simpler alternatives like “"cannot"” or “"unable to"” will improve your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
cannot
Direct replacement, removing the redundancy.
is not able to
Rephrasing to use the negative form of 'able'.
are not able to
Plural subject agreement with 'is not able to'.
unable to
Using the adjective 'unable' instead of the phrase.
cannot manage to
Emphasizing the difficulty in achieving something.
is incapable of
Formal way of expressing lack of ability.
are incapable of
Plural subject agreement with 'is incapable of'.
lacks the ability to
Focusing on the absence of a specific skill or capacity.
is not equipped to
Suggesting a lack of necessary resources or preparation.
is powerless to
Emphasizing a lack of influence or control.
FAQs
Why is “cannot be able” considered grammatically incorrect?
The phrase “cannot be able” is grammatically incorrect because it's redundant. The word “cannot” already implies an inability, so adding “be able” is unnecessary. You can use either “cannot” or “not be able” instead.
What's a simple way to correct a sentence using “cannot be able”?
To correct a sentence using “cannot be able”, simply remove “be able”. For instance, change “She cannot be able to attend” to “She "cannot attend"”.
Are there situations where “cannot be able” is acceptable?
No, “cannot be able” is generally not considered acceptable in standard English. It is always better to use “cannot” or “not be able” for clarity and grammatical correctness.
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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
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested