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
they could be
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they could be" is correct and usable in written English.
You can use it to express a possibility or potential regarding a subject or situation. Example: "If the weather improves, they could be ready for the event by next week."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
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
They could be dolphins".
News & Media
They could be right.
News & Media
They could be hot.
News & Media
They could be Isis.
News & Media
They could be dead".
News & Media
But they could be.
News & Media
They could be anyone.
News & Media
"They could be poisonous.
News & Media
They could be biased.
News & Media
They could be wrong.
News & Media
They could be silenced tomorrow.
News & Media
Expert writing Tips
Best practice
Use "they could be" to express a plausible scenario or potential outcome, especially when presenting multiple possibilities.
Common error
Avoid starting too many sentences with "they could be" as it can make your writing sound repetitive and less assertive. Vary your sentence structure by using alternatives like "perhaps" or "it's possible".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they could be" functions as a modal phrase expressing possibility or potential. As Ludwig AI confirms, this phrase is commonly used to introduce speculative scenarios or potential outcomes. Examples from Ludwig illustrate its versatile usage across diverse contexts.
Frequent in
News & Media
60%
Wiki
13%
Science
12%
Less common in
Formal & Business
5%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "they could be" is a versatile phrase used to express possibility, potential, or speculation. Ludwig AI confirms its grammatical correctness and widespread use. It is particularly common in news and media, though applicable across a range of contexts from scientific to informal writing. While it's a valuable tool for expressing uncertainty, be mindful of overuse. Alternatives such as "they might be" or "it's possible that they are" can provide stylistic variation. Ludwig's examples showcase how "they could be" enhances discussions of potential identities, conditions, and future events, all while maintaining a neutral tone.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they might be
Replaces the modal verb "could" with "might", indicating a slightly lower degree of possibility.
they may be
Substitutes "could" with "may", similar to "might", expressing possibility.
they can be
Uses "can" instead of "could", suggesting possibility based on ability or capacity.
it is possible that they are
Introduces a formal construction expressing possibility.
it's conceivable that they are
Emphasizes the conceivability of a situation, making it a more formal alternative.
they are potentially
Highlights the potential state or condition of a subject.
they would be
Shifts the sense to a conditional state, indicating what might happen under certain circumstances.
perhaps they are
Adds an adverb to soften the statement and indicate uncertainty.
conceivably, they are
Similar to "perhaps", but with a slightly more formal tone.
it's within the realm of possibility that they are
Expresses possibility in a more elaborate and emphatic way.
FAQs
How can I use "they could be" in a sentence?
Use "they could be" to suggest a possibility or potential. For example, "If the weather improves, "they could be" ready for the event by next week".
What can I say instead of "they could be"?
You can use alternatives like "they might be", "they may be", or "it is possible that they are" depending on the context.
Which is correct, "they could be" or "they can be"?
Both are grammatically correct, but "they could be" expresses possibility, while "they can be" expresses ability or capacity. The choice depends on the intended meaning.
What's the difference between "they could be" and "they would be"?
"They could be" suggests a possibility. "They would be" expresses a conditional statement or hypothetical situation, indicating what might happen under certain circumstances.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested