check if

USAGE SUMMARY

The phrase "check if" is correct and usable in written English.
You can use it when you want to verify or confirm the existence or condition of something. Example: "Please check if the report has been submitted on time."

✓ Grammatically correct

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Check if any pair of AABBs overlaps.

Plosone

Please check if appropriate.

Applied Microbiology and Biotechnology

Check if it's OK.

WikiHow

Check if secure.

WikiHow

Check if you qualify.

WikiHow

Check if it fits.

WikiHow

Check if the door fits.

WikiHow

Check if syncing was successful.

WikiHow

Check if it is secure.

WikiHow

Check if they have badges.

WikiHow

Check if egg is broken.

WikiHow

Expert writing Tips

Best practice

Use "check if" when you need to verify the condition or existence of something before proceeding with an action or decision. For example, "Check if the file is saved before closing the application."

Common error

Avoid using "check if" in highly formal documents or professional communications where more sophisticated alternatives like "verify whether" or "confirm if" are more appropriate.

Linguistic Context

The phrase "check if" functions as a conditional conjunction, introducing a clause that expresses a condition that needs to be verified or confirmed. Ludwig AI validates its prevalent usage across various contexts.

Expression frequency: Very common

Frequent in

Wiki

88%

Science

10%

News & Media

1%

Less common in

Formal & Business

1%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "check if" is a common and grammatically sound way to introduce a conditional clause that requires verification. Ludwig AI analysis shows it's frequently used in general instructional contexts, particularly within wikis, and is also present in scientific literature. While it's generally acceptable, more formal settings may benefit from alternatives such as "verify whether" or "confirm if". When using "check if", ensure the context is appropriate for its neutral-to-informal register and consider whether a more precise or authoritative alternative would better suit the tone of your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Verify whether

Formal alternative, emphasizes a more thorough investigation.

Confirm if

Direct alternative, emphasizes a need for affirmation.

Determine whether

Focuses on the process of reaching a conclusion.

Ascertain if

More formal and emphasizes establishing something definitively.

Make sure that

Emphasizes ensuring a specific condition is met.

See whether

Informal alternative, indicates a simple observation.

Investigate if

Suggests a more detailed inquiry.

Examine if

Emphasizes a careful inspection.

Look to see if

Informal and focuses on visual inspection.

Find out if

Focuses on discovering information.

FAQs

How to use "check if" in a sentence?

Use "check if" to introduce a conditional clause that requires verification. For example, "Check if the document is complete before submitting it".

What can I say instead of "check if"?

You can use alternatives like "verify whether", "confirm if", or "determine whether" depending on the context.

Which is correct, "check if" or "check whether"?

Both "check if" and "check whether" are grammatically correct, but "check whether" is often considered more formal and precise.

When should I use "check if" versus "see if"?

"Check if" implies a more deliberate verification process, while "see if" suggests a more casual observation. For example, "Check if all the boxes are ticked" versus "See if you can find the keys".