can have been

USAGE SUMMARY

The phrase "can have been" is a correct and usable phrasal verb in written English.
It is used to express a possibility in the past. For example: "She can have been taken to the hospital by ambulance."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

FEW can have been surprised.

The Economist

There can have been no quieter, more inoffensive, unassuming man.

The New York Times - Books

There can have been few more incredible human sights.

Independent

But there is nothing out of which this body can have been generated.

Massachusetts Institute of Technology

They can have been completed at an undergraduate or post‐baccalaureate level, or through graduate work.

Stanford University

Therefore, Mn3O4 NPs/GSs can have been used as an electrode material for supercapacitors.

Electrochimica Acta

No great scientist known to history can have been less fanatical or more serene.

The New York Times - Magazine

Not everything in the Cole attack can have been so simple.

The New York Times

This much effort can have been called for only in the face of really dreadful threats.

The Guardian - Opinion

Not all can have been turned off despite the strict instruction.

The Guardian

And once it is done there can have been no other thing.

The New Yorker

Expert writing Tips

Best practice

Pair this phrase with restrictive words like "few", "no one" or "nothing" to emphasize how unique or surprising a past situation was.

Common error

Avoid using "can have been" when you actually mean to describe a situation that was dependent on a condition that wasn't met; in those cases, use "would have been" instead. For example, use "it would have been better" if a condition failed, but "it can have been no coincidence" for a logical deduction.

Linguistic Context

The phrase "can have been" serves as a perfect modal construction. It combines the modal verb 'can' with the perfect aspect ('have been') to project a possibility onto a past timeframe. In many instances found in Ludwig, it functions as an epistemic modal, meaning it deals with the speaker's knowledge or logical deductions about the past rather than physical ability.

Expression frequency: Very common

Frequent in

News & Media

65%

Academia

20%

Science

10%

Less common in

Encyclopedias

3%

Wiki

1%

Formal & Business

1%

Ludwig's WRAP-UP

In summary, "can have been" is a sophisticated and correct linguistic tool used to express past possibilities. Based on Ludwig AI's analysis, it is a robust phrasal verb that appears frequently in high-level discourse, ranging from news analysis to scientific journals. While it is often interchangeable with "could have been", it carries a distinct rhetorical weight, frequently used with negatives like "no one" or "few" to make emphatic points about historical conditions. It is most at home in formal and professional writing, where precision in expressing degrees of certainty is paramount. Use it to add an analytical depth to your past-tense observations and deductions.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

could have been

More common in general usage to express a past possibility or an unfulfilled potential

may have been

Higher level of formality often used in academic or journalistic reporting to indicate uncertainty

might have been

Suggests a slightly lower degree of probability than may have been

must have been

Indicates a strong logical deduction or near-certainty about a past event

appears to have been

Focuses on the current evidence or appearance of a past situation

is likely to have been

Explicitly states a high probability rather than using a modal verb

could possibly have been

Adds emphasis to the uncertainty or the wide range of potential outcomes

was perhaps

A simpler adverbial alternative to describe a past possibility

can be

Shifts the timeframe from a specific past event to a general or present possibility

would have been

Usually implies a conditional past result that did not actually occur

FAQs

How do I use "can have been" in a sentence?

You can use it to speculate about past events, such as "Few players "can have been surprised" by the coach's decision" or "The ancient ruins "can have been constructed" using only primitive tools."

What is the difference between "can have been" and "could have been"?

While "could have been" is the most common form for past possibility, "can have been" is often used for emphatic deductions or in formal contexts to suggest that a certain state of affairs was logically possible.

Is "can have been" grammatically correct?

Yes, it is a correct modal construction. As confirmed by Ludwig AI, it is used to express a possibility in the past, often appearing in high-quality journalism and literature.

What can I say instead of "can have been"?

Depending on the level of certainty, you could use "may have been", "might have been", or ""could have been"".