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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
or every two months
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'or every two months' is correct and usable in written English.
You can use it to refer to a period of time that can be either every month or every two months. For example: "We're planning an event either once a month or every two months."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(19)
every one to two months
monthly or less frequent
every two months
every other month
once every two months
bi-monthly
every two years
every two days
every two jobs
every two minutes
every two weeks
every two hours
every two periods
every two points
every two cycles
every two seconds
every two meters
every month
once every two hours
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
3 human-written examples
The same applies to bimonthly and biweekly: say "every fortnight", "twice a month" or "every two months", and so on.
News & Media
Follow-up visits for IPT and ART were monthly or every two months, respectively.
Science
The reported frequency of abdominal attacks was slightly less than cutaneous attacks, ranging from weekly attacks to attacks occurring every month or every two months.
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Maybe just once in a month, or once every two months.
News & Media
The goal is to release an original movie or series every two months.
News & Media
Clean drinking water is transported from Waisai either twice a month or once every two months depending on the season.
News & Media
For the most frequent cycle of fortnightly prescriptions, this reflects missing one injection or more every two months.
Science
Treat yourself with a trip to the spa once a month, or once every two months.
Wiki
[Unexposed] I think once a month meeting or even once every two months would be reasonable.
Science
If you eat fast food often, change it to once every month, or even once every two months.
Wiki
I get a job every two months or so.
News & Media
Expert writing Tips
Best practice
When using "or every two months", ensure the context clearly indicates whether it refers to a variable frequency (sometimes monthly, sometimes every two months) or a choice between two distinct schedules.
Common error
Avoid using "or every two months" in contexts where it might be confused with "bi-monthly", which can mean both twice a month and every two months. Clarify the intended meaning to prevent misunderstanding.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "or every two months" functions as an adverbial phrase of frequency, modifying a verb to indicate how often an action occurs. It provides an alternative to a monthly frequency, suggesting a less frequent occurrence. Ludwig confirms its usability, showing it in real-world contexts.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "or every two months" is a grammatically correct adverbial phrase used to express frequency, indicating that something occurs either monthly or every other month. Ludwig's AI confirms its validity and common usage. While versatile across various contexts like News & Media, Science, and Wiki, it's essential to ensure clarity to avoid confusion with similar terms like "bi-monthly". When in doubt, using alternative phrases such as "every one to two months" or "monthly or less frequent" can help maintain precision and avoid ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
either monthly or bi-monthly
Replaces "every two months" with "bi-monthly" for conciseness, maintaining the same meaning.
every one to two months
This option specifies the range directly, offering a clearer and more explicit expression of the interval.
on a monthly to bi-monthly basis
Indicates a range from monthly to bi-monthly occurrences in a structured manner.
monthly or less frequent
This focuses on a monthly baseline, clarifying that the occurrence could be less frequent than monthly.
every month, if not every other month
It clearly states the two options but is a little more verbose.
bi-monthly or less
This alternative uses the prefix 'bi-' to suggest twice a month, encompassing the 'or less' to incorporate the possibility of every two months.
once a month or less often
Focuses on the 'once a month' aspect and then broadens it to include less frequent occurrences.
at intervals of one or two months
This version emphasizes intervals and provides a formal tone to the frequency.
in one- to two-month cycles
Highlights the cyclical nature of the events with specific durations.
every 30 to 60 days
Provides a precise, numerical range for the time interval.
FAQs
What does "or every two months" mean?
The phrase "or every two months" indicates an event or action occurs either every month or every two months. It signifies a frequency that is either monthly or bi-monthly, with the possibility of the action happening less frequently than once a month.
How can I use "or every two months" in a sentence?
You can use "or every two months" to describe the frequency of an event. For example, "We have team meetings once a month "or every two months", depending on project needs."
Which is clearer: "or every two months" or "bi-monthly"?
While "bi-monthly" can mean both twice a month and every two months, "or every two months" is less ambiguous. For clarity, specifying "every other month" or "every one to two months" can prevent confusion.
What are some alternatives to "or every two months"?
Alternatives include "monthly or less frequent", "every one to two months", or "either monthly or bi-monthly", depending on the context and desired level of precision.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested