We have to check one by one vs We have to check one to one

Both phrases are correct, but they are used in different contexts. 'We have to check one by one' is commonly used when referring to checking items individually or sequentially. On the other hand, 'We have to check one to one' is used when emphasizing a direct correspondence or comparison between two things.

Last updated: March 25, 2024 • 952 views

This phrase is correct and commonly used in English when referring to checking items individually or sequentially.

"We have to check one by one"

This phrase is used when you need to emphasize checking each item separately or in a specific order.

Examples:

We have to check the documents one by one to ensure accuracy.
The teacher checked the students' homework one by one.
Please go through the list one by one and mark the items that need attention.
The detective examined the clues one by one to solve the mystery.
I will review the applications one by one before making a decision.

Show examples from the web [+]

Well, then check them out one by one.
The Commission has set up a technical assistance team under the responsibility of DG AIDCO which checks and approves one by one all the arrears invoices before the amount involved is released.
You can write a big check to the One By One Foundation.
When you pick up a check one day... one day, then I'll believe in miracles.
The EESC also supports the creation of a one-stop-shop at land borders, where each traveller is subject to one check by one authority.
Well, then check them out one by one.
But one we have to check on, Mike.
We have to check just to make sure no one's sending you any edibles.
Check one, two, one, two.
We have to check out that new wine bar this weekend.
We have to check it but there's no key.
Listen, we have to check every detail.
We have to check every angle, rebecca.
We have to check his account, but he's collaborating.
We have to check the controls.
We have to check on the other deer in the South Wood.
We have to check our facts first.
We have to check in with the XO.
We have to check on it, Mr. Hibbert.
We have to check the criteria. Baptismal records, blood type.

Alternatives:

We have to check each one individually.
We have to check them one at a time.
We have to check them individually.
We have to check them sequentially.
We have to check them one after the other.

This phrase is correct and is used when emphasizing a direct correspondence or comparison between two things.

"We have to check one to one"

This phrase is used when you want to highlight a one-to-one relationship or comparison between two items or individuals.

Examples:

The tutor worked with the students one to one to address their specific needs.
The manager conducted performance reviews one to one with each employee.
The therapist provided counseling sessions one to one with the clients.
The artist painted the portraits one to one, capturing each detail accurately.
The mentorship program pairs mentors and mentees one to one for personalized guidance.

Show examples from the web [+]

When you pick up a check one day... one day, then I'll believe in miracles.
The EESC also supports the creation of a one-stop-shop at land borders, where each traveller is subject to one check by one authority.
But one we have to check on, Mike.
We have to check just to make sure no one's sending you any edibles.
Check one, two, one, two.
We have to check out that new wine bar this weekend.
We have to check it but there's no key.
Listen, we have to check every detail.
We have to check every angle, rebecca.
We have to check his account, but he's collaborating.
We have to check the controls.
We have to check on the other deer in the South Wood.
We have to check our facts first.
We have to check in with the XO.
We have to check on it, Mr. Hibbert.
We have to check the criteria. Baptismal records, blood type.
We have to check with the gas company, ma'am.
We have to check if the water's clean.
We have to check everything we find suspicious without exception.
We have to check those who are in the official committee.

Alternatives:

We have to check them one by one.
We have to check them individually.
We have to check them sequentially.
We have to check them one after the other.
We have to check each one individually.

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We have to check one by one vs We have to check one to one