Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
one time per week
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "one time per week" is correct and usable in written English.
You can use it to indicate a frequency of occurrence, specifically that something happens once every week. Example: "We will meet one time per week to discuss our progress on the project."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(20)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
31 human-written examples
That said, you can only use an upgraded sticker on a check-in one time per week.
News & Media
We also kept and prepared ICTS in the 4 °C for 1 year and examined the fluorescent signals by using CCD-based reader one time per week.
Science
To determine the prevalence of diagnosed constipation among nursing home patients; to assess the prevalence of routine (at least one time per week for 4 consecutive weeks) laxative use; and to investigate prescribing practices.
HIIT should be done maximum one time per week with full recovery made before lifting again.
News & Media
We need to follow the example of the Netherlands which just this year recommended reducing fish consumption from two times per week down to only one time per week.
News & Media
EQW is the first approved medication for T2DM that is administered one time per week.
Human-verified similar examples from authoritative sources
Similar Expressions
29 human-written examples
Both questions asked about any use in the past 12 months and asked users to mark how frequently they took them: less than two times per month, two to three times per month, one to two times per week, three to four times per week, five to six times per week, one time per day, or two or more times per day.
Science
The mothers chose one of the following responses: "none", "one to two times per week", "three to four times per week", "five to six times per week", "one time per day", "twice per day", "three times per day", or "four or more times per day".
Science
After baseline measurements were taken, patients were treated with bimatoprost 0.01% one time per day at bedtime for 4 weeks, and then 24 h IOP data were collected under the same laboratory conditions.
Science
Having tuna and white fish one more time per week would increase the geometric mean serum concentration of BDE-153 by a factor of 1.43 (p = 0.02).
Increasing the frequency of having canned meat entrée by one more time per week could increase the odds of detecting BDE-154 and 209 in the blood by a factor of 2.55 and 3.48, respectively.
Expert writing Tips
Best practice
Use "one time per week" when you need to be precise about the frequency of an event, especially in technical or formal contexts. For general communication, "once a week" is often more natural.
Common error
Avoid using "one time a week" in formal writing. While understandable, "one time per week" or the simpler "once a week" is grammatically preferred.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "one time per week" functions as an adverbial phrase of frequency, specifying how often an action or event occurs. It modifies verbs or clauses to indicate a recurring action on a weekly basis, as supported by Ludwig AI's analysis.
Frequent in
Science
62%
News & Media
27%
Wiki
7%
Less common in
Formal & Business
4%
Social Media
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "one time per week" serves as a clear and precise way to indicate a weekly frequency. As Ludwig AI confirms, it is grammatically correct and commonly used, particularly in scientific, news, and general contexts. While "once a week" is a more concise alternative for everyday communication, "one time per week" provides added clarity in formal settings. When choosing the right phrase, consider your audience and the level of formality required.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
once a week
A more concise and common way to say "one time per week".
weekly
An adjective describing something that happens every week.
every week
Emphasizes the recurrence of the event each week.
one day a week
Specifies that the action happens on a single day within the week.
seven days apart
Focuses on the interval between occurrences.
a single time each week
Adds emphasis to the singularity of the event.
on a weekly basis
A more formal way to express "one time per week".
once in seven days
Highlights the seven-day cycle.
each seven days
Emphasizes the cyclical nature of the action.
at weekly intervals
Focuses on the consistency of the time spacing.
FAQs
What can I say instead of "one time per week"?
You can use alternatives like "once a week", "weekly", or "every week" depending on the context.
Is it correct to say "one time a week" instead of "one time per week"?
While "one time a week" is commonly understood, "one time per week" is grammatically more formal and preferred in official writing. Alternatively, "once a week" is also a good option.
How do I use "one time per week" in a sentence?
You can use "one time per week" to specify the frequency of an action or event. For example, "The medication should be taken one time per week."
What is the difference between "one time per week" and "weekly"?
"One time per week" is a phrase that explicitly states the frequency, while "weekly" is an adjective or adverb that implies the same frequency. For instance, "They have a weekly meeting" is similar to "They meet one time per week".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested