Used and loved by millions
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
could do
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could do" is correct and commonly used in written English.
It is often used to indicate ability or possibility. Here are some examples: - "I could do my homework tomorrow instead of today." (indicating possibility) - "He could do a backflip when he was younger." (indicating ability in the past) - "Could you do me a favor and pick up some groceries?" (as a polite request) - "She could do a lot of damage with that golf club." (indicating potential for harm).
✓ Grammatically correct
News & Media
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
"Could do.
News & Media
We could do that.
News & Media
"Poles could do it.
News & Media
It could do so.
News & Media
Anyone could do them.
News & Media
You could do colors.
News & Media
Anybody could do that.
News & Media
That you could do.
News & Media
They could do anything.
News & Media
I could do anything".
News & Media
"You could do worse".
News & Media
Expert writing Tips
Best practice
Use "could do" to express a tentative possibility or suggestion, particularly when offering alternatives or discussing hypothetical scenarios.
Common error
Avoid using "could do" when "should do" is more appropriate. "Could do" implies possibility, while "should do" implies obligation or recommendation.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could do" primarily functions as a modal verb phrase. It expresses possibility, ability, or a polite suggestion. According to Ludwig, the phrase is grammatically correct and commonly used. Examples from the provided data illustrate its use in various contexts, from expressing potential actions to describing past capabilities.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "could do" is a versatile and grammatically sound phrase that functions as a modal verb phrase to express possibility, ability, or a polite suggestion. As Ludwig AI confirms, the phrase is grammatically correct. It is most commonly found in news and media sources. To ensure correct usage, remember that "could do" implies possibility, while "should do" implies obligation. By understanding its nuances and appropriate contexts, writers can effectively incorporate "could do" into their writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is able to
Focuses on the present ability to perform an action.
is capable of
Emphasizes inherent ability or capacity.
would be able to do
Indicates future ability or a hypothetical scenario.
might do
Suggests a possibility or likelihood of performing an action.
has the potential to
Emphasizes the latent ability or possibility for future action.
is in a position to
Suggests having the opportunity or resources to act.
can accomplish
Highlights the achievement or completion of a task.
is qualified to
Highlights the necessary skills or credentials for a specific task.
is fit to
Indicates suitability or readiness for a specific purpose.
is permitted to
Indicates that someone has been allowed to perform an action.
FAQs
How can I use "could do" in a sentence?
What is the difference between "could do" and "can do"?
What can I say instead of "could do"?
You can use alternatives like "is able to", "might do", or "would be able to do" depending on the specific context.
When is it appropriate to use "could do" instead of "should do"?
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested