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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

twice per week

Grammar usage guide and real-world examples

USAGE SUMMARY

"twice per week" is a perfectly acceptable and correct way of writing this phrase.
You can use it at any time you are referring to something that occurs two times within a one-week period. For example, "I attend salsa dancing classes twice per week."

✓ Grammatically correct

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Meets evenings twice per week.

Meets morning or evenings twice per week.

Children participated in garden-based activities twice per week.

Class meetings are held twice per week, on Tuesdays & Thursdays.

Mice were scored twice per week for 10 weeks.

Science & Research

Nature

Forty four e-tutors participated for one hour and a half a course, twice per week.

Nocturnal symptoms at least twice per week were reported by 19%.

Monitoring was carried out over 8 h, twice per week from January 2011 to December 2012.

The animals were fed a nutritious diet and subjected to semen collection twice per week.

Additionally, it has study sessions twice per week for students with home-made food.

Lectures are provided by video twice per week; live 3-hour recitation one evening per week.

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Expert writing Tips

Best practice

In scientific writing, "twice per week" provides a precise measure of frequency, ensuring clarity and reproducibility in experimental protocols.

Common error

Be careful not to use "biweekly" interchangeably with "twice per week". While "twice per week" is clear, "biweekly" can mean either twice a week or once every two weeks. To avoid confusion, use "twice per week" for clarity.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "twice per week" functions primarily as an adverbial phrase of frequency, modifying verbs to indicate how often an action occurs. Ludwig AI confirms its grammatical correctness, highlighting its role in specifying recurring actions.

Expression frequency: Very common

Frequent in

Science

50%

Academia

45%

Wiki

5%

Less common in

News & Media

0%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "twice per week" is a grammatically sound and very common way to express frequency, indicating that something occurs two times within a seven-day period. Ludwig AI confirms its correctness, noting its wide acceptance. While alternatives like "biweekly" exist, "twice per week" offers clarity and avoids potential ambiguity. Its use is prevalent in both scientific and academic writing, providing a precise measure of recurrence. Therefore, employing "twice per week" ensures effective communication regarding the frequency of events or activities.

FAQs

How can I use "twice per week" in a sentence?

Use "twice per week" to indicate that something happens two times within a seven-day period. For example, "I go to the gym "twice per week"."

What are some alternatives to saying "twice per week"?

Alternatives include "biweekly" (though this can be ambiguous), "two times a week", or "semiweekly".

Is it better to say "twice a week" or "twice per week"?

Both "twice a week" and "twice per week" are grammatically correct and widely accepted. The choice often comes down to personal preference, although "twice a week" is slightly more common in everyday conversation.

What does "twice per week" mean in the context of exercise recommendations?

When health guidelines recommend exercising "twice per week", it means you should engage in physical activity on two separate days within a week, allowing for rest and recovery between sessions.

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Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: