a long time

USAGE SUMMARY

"a long time" is correct and usable in written English.
You can use it to refer to an extended period of time. Example sentence: "It's been a long time since I've seen my grandmother."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Been a long time.

The New York Times

A long time passed.

The New Yorker

A long time".

The New York Times

"A long time ago".

The New York Times

A long time there".

The New Yorker

"Not a long time.

The New York Times

That's a long time.

The New York Times

"It's a long time.

The New York Times

What a long time!

The New Yorker

For a long time?

The New York Times

Not for a long time.

The New Yorker

Expert writing Tips

Best practice

Use "a long time" to indicate a duration that is subjectively perceived as lengthy, rather than specifying an exact measurement of time. For example, use it when you don't know the exact time or when the precise duration is not important.

Common error

Avoid using "a long time" when you have precise information about the duration. Instead of saying "The meeting lasted a long time", specify the actual duration: "The meeting lasted three hours".

Linguistic Context

The phrase "a long time" functions as an adverbial phrase indicating duration. It modifies verbs or clauses, expressing that an action or state persists for an extended period. As Ludwig AI confirms, this phrase is grammatically sound and suitable for general use.

Expression frequency: Very common

Frequent in

News & Media

67%

Academia

8%

Wiki

4%

Less common in

Science

8%

Formal & Business

5%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "a long time" is a grammatically correct and versatile expression used to indicate an extended duration. As Ludwig AI points out, this phrase is suitable for general use, and it appears frequently across diverse sources, including news, academia, and informal contexts. When using this phrase, be mindful of situations where specifying the exact time frame might be more appropriate. Remember that while there are many similar phrases, such as "a considerable period" and "quite a while", the best choice depends on the specific context and desired level of formality.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a long duration

Directly replaces "time" with its synonym "duration".

a considerable period

Replaces "time" with "period", suggesting a measurable duration.

an extended duration

Uses more formal vocabulary to convey the same meaning.

a lengthy period

Similar to "a considerable period" with a slightly different tone.

quite a while

Offers a slightly less formal alternative.

a good while

Similar to "quite a while", implying a noticeable duration.

a significant stretch

Emphasizes the unbroken continuity of the duration.

for many years

Specifies the duration in years, making it more concrete.

years on end

Suggests a continuous sequence of years.

ages

An informal term suggesting a very long time.

FAQs

How can I use "a long time" in a sentence?

You can use "a long time" to express that something has lasted, or will last, for an extended duration. For example: "It's been "a long time" since we last met".

What are some alternatives to saying "a long time"?

Depending on the context, you could use alternatives like "a considerable period", "quite a while", or "for many years".

Is it grammatically correct to say "a long time ago"?

Yes, "a long time ago" is a grammatically correct and commonly used phrase to refer to something that happened far in the past.

What's the difference between "a long time" and "a long time ago"?

"A long time" refers to an extended duration, whereas "a long time ago" specifically refers to a point or event that occurred far in the past.