must be between

USAGE SUMMARY

The phrase "must be between" is grammatically correct and commonly used in written English.
You can use this phrase when describing a range or limit that something must fall between. For example: - The temperature must be between 60 and 70 degrees for optimal fermentation. - All participants must be between the ages of 18 and 30 to attend the workshop. - Your essay must be between 1000 and 1500 words. - Children must be between 40 and 60 inches tall to ride the rollercoaster.

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Each piece must be between 1500 - 2500 words.

The Guardian

They must be between 15 and 17.

The Guardian

It must be between our peoples, too".

The Guardian

Must be between 0 and 1 (inclusive).

Yale University

Members must be between 18 and 39 years old.

The New York Times

Entrants must be between 13 and 17 years of age.

The Guardian

Trainees must be between 18½ and 27 years of age.

The New York Times

The second rebalancing must be between the present and future.

The New York Times

The third rebalancing must be between production and nature.

The New York Times

For an explosion to occur, gas levels must be between 5 and 15percentt, he added.

The New York Times

Nominee must be between 21-40 years of age as of February 2 , 2019

Yale University

Expert writing Tips

Best practice

When specifying a range using "must be between", ensure clarity by explicitly stating the units of measurement (e.g., "The temperature must be between 20 and 25 degrees Celsius").

Common error

Avoid ambiguity by specifying whether the endpoints of the range are inclusive or exclusive. For example, clarify if "must be between 10 and 20" includes 10 and 20, or only the numbers in between.

Linguistic Context

The phrase "must be between" functions as a modal phrase used to express a requirement or condition within a specified range. Ludwig AI indicates that the phrase is grammatically correct and commonly used.

Expression frequency: Very common

Frequent in

News & Media

35%

Academia

25%

Science

25%

Less common in

Wiki

10%

Formal & Business

3%

Encyclopedias

2%

Ludwig's WRAP-UP

In summary, the phrase "must be between" is a grammatically sound and frequently used expression to denote a required range or limit. Ludwig AI confirms its correctness and common usage across diverse contexts, including News & Media, Academia, and Science. The phrase serves to set clear boundaries and is applicable in both formal and informal settings. When using "must be between", ensure clarity by specifying units and indicating inclusivity. Alternatives include "has to be within" or "is required to be in the range of", offering similar meanings with slight variations in formality.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

has to be within

Replaces "must" with "has to", suggesting a similar level of necessity or requirement.

is required to be in

Emphasizes the requirement aspect, making it slightly more formal.

needs to be in the range of

More formal, explicitly stating the concept of a range.

is expected to be between

Implies an anticipated or predicted range.

should fall within

Substitutes "must" with "should", indicating a recommendation rather than a strict requirement.

is bounded by

A more formal and mathematical way of expressing the limits of a range.

ought to be among

Suggests a moral obligation or expectation, differing slightly in nuance.

is constrained to

Similar to 'is limited to', highlighting the constraint on the range.

is confined to

Emphasizes the restriction and containment within a particular range.

is limited to

Focuses on the limitation of the range, conveying a restriction.

FAQs

How do I use "must be between" in a sentence?

Use "must be between" to define a range or limit for a value. For example, "The file size "must be between" 1MB and 5MB".

What is a more formal way to say "must be between"?

A more formal alternative is "is required to be in the range of". For example, "The input value "is required to be in the range of" 0 to 1".

Which is correct, "must be between" or "has to be between"?

Both "must be between" and "has to be between" are grammatically correct and convey similar meanings. "Must be between" is slightly more formal, while "has to be between" is more conversational.

What other phrases indicate a range similar to "must be between"?

Phrases like "should fall within", "is limited to", or "is constrained to" can also indicate a range, though they may carry slightly different nuances in meaning.