couldn't keep up

USAGE SUMMARY

"couldn't keep up" is correct and usable in written English.
You could use it to describe a situation when someone was unable to keep pace with something. For example: "I was trying to keep up with my peers, but I couldn't keep up."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

The poor couldn't keep up.

The New York Times

That she couldn't keep up.

The New Yorker

"I just couldn't keep up".

The New York Times

He couldn't keep up.

The New Yorker

McCain couldn't keep up.

The New Yorker

The regulators couldn't keep up.

The Guardian - Business

Soon Eber couldn't keep up.

The New Yorker

No, she just couldn't keep up.

The New Yorker

She couldn't keep up with her medicines.

The New York Times - Magazine

"They couldn't keep up with its pace".

The New Yorker

Sando couldn't keep up with demand.

The New Yorker

Expert writing Tips

Best practice

Use "couldn't keep up" to clearly convey an inability to maintain pace, whether in a literal or figurative sense. For example, "The company couldn't keep up with the rapid changes in technology."

Common error

Avoid using "couldn't keep up" solely for physical speed or literal motion; it is effectively used for abstract concepts like market trends, academic rigor, or social changes. "He couldn't keep up with the class" is good, while "He couldn't keep up with the car" should probably be rephrased for clarity to avoid ambiguity.

Linguistic Context

The phrase "couldn't keep up" functions as a verb phrase expressing an inability to maintain the same pace or level as something else. Ludwig shows examples where it describes physical inability, failure to meet demands, or keep abreast with changes.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "couldn't keep up" is a common and grammatically sound way to express an inability to maintain pace, level, or standard. As Ludwig AI indicates, it is suitable for use in written English. Predominantly found in news and media sources, it serves to explain instances of falling behind or failing to meet expectations. For alternatives, consider "failed to maintain pace" or "fell behind", depending on the specific nuance you wish to convey. Avoid limiting its use solely to physical speed, as it effectively communicates abstract concepts too.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

failed to maintain pace

Emphasizes the failure aspect of not being able to keep up.

was unable to keep pace

A more formal way of saying "couldn't keep up".

couldn't keep pace

Slightly different word order, but maintains the same meaning.

fell behind

Focuses on the action of lagging or trailing.

struggled to keep up

Emphasizes the difficulty in maintaining pace.

was left behind

Implies being overtaken or abandoned.

lagged behind

Highlights the act of trailing or moving slower.

found it hard to keep up

Similar to struggling, but focuses on the perceived difficulty.

failed to keep abreast

Focuses on the inability to stay informed or up-to-date.

was outpaced

Highlights the idea of someone or something being faster.

FAQs

How can I use "couldn't keep up" in a sentence?

You can use "couldn't keep up" to express an inability to maintain pace with something, whether literal or figurative. For example, "I couldn't keep up with the new software updates" or "The small business couldn't keep up with the demands of the growing market."

What are some alternatives to "couldn't keep up"?

Alternatives include "failed to maintain pace", "was unable to keep pace", or "fell behind", depending on the context.

Is it correct to say "could not keep up" instead of "couldn't keep up"?

Yes, both are grammatically correct. "Could not keep up" is the full form, while "couldn't keep up" is the contracted form. The contracted form is more common in informal speech and writing, while the full form is suitable for formal contexts.

What's the difference between "couldn't keep up" and "struggled to keep up"?

"Couldn't keep up" implies a definitive inability to maintain pace, whereas "struggled to keep up" suggests difficulty and effort in trying to maintain pace, even if ultimately unsuccessful.