every four hour

USAGE SUMMARY

The phrase "every four hour" is not correct in English.
It should be "every four hours." You can use this phrase when describing an action or event that occurs at four-hour intervals. Example: "The medication should be taken every four hours to ensure its effectiveness."

⚠ May contain grammatical issues

Human-verified similar examples from authoritative sources

Similar Expressions

60 human-written examples

A nice driver will stop every four hours or so.

The New Yorker

Urine was collected every four hours for 72 hours and multiple fecal grab samples were taken every two hours post feeding.

Journal of Equine Veterinary Science

Pain was assessed every four hours during the first three ICU days.

Intensive Care Medicine Experimental

Replicate serum bottles were prepared and 3 bottles were harvested every four hours for analysis.

AMB Express

Once the COMFORT-B score was optimal, nurses assessed the score every four hours.

Annals of Intensive Care

Second, remember that ibuprofen is given every six hours and acetaminophen is given every four hours.

Huffington Post

"I still (breast)feed my children every four hours.

Huffington Post

With bottle feedings every four hours, he gains weight.

Huffington Post

"I take a teaspoon every four hours," she said.

Huffington Post

She needed drugs every four hours, which Ferguson administered.

Vice

Whatever happens, I'm grateful to have had him while I did.

Huffington Post

Expert writing Tips

Best practice

Always use the plural form "hours" when referring to intervals of time. For example, "Take the medicine every four hours."

Common error

Avoid using the singular form "hour" when referring to recurring intervals. The correct phrase is "every four hours", not "every four hour".

Linguistic Context

The phrase "every four hour" is intended to function as an adverbial phrase, modifying a verb by specifying frequency or interval. However, due to the missing plural 's' on 'hour', it is grammatically incorrect, as confirmed by Ludwig.

Expression frequency: Missing

Frequent in

Science

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News & Media

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Formal & Business

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Less common in

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News & Media

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Formal & Business

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Ludwig's WRAP-UP

The phrase "every four hour" is grammatically incorrect and should be written as "every four hours". As noted by Ludwig, the correct phrase includes the plural 's' on "hours" to properly denote a recurring interval. Using "every four hours" is appropriate in neutral contexts for describing the frequency of events. While no exact examples exist for the incorrect phrase, Ludwig provides numerous examples of the corrected form, underscoring its proper usage in various settings. Remember to always use the plural form when referring to intervals of time.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every four hours

Corrects the grammatical error by adding the plural 's' to 'hour'.

every 4 hours

Replaces the word 'four' with the digit '4'.

each four hours

Corrects the grammar and emphasizes separate instances.

once every four hours

Adds "once" to specify the frequency of the event.

at four-hour intervals

Rephrases to use "intervals" to convey recurring periods.

each four-hour period

Uses "period" to emphasize a duration of four hours.

four times a day

Expresses frequency in terms of occurrences within a day.

every quarter of a day

Replaces "four hours" with its equivalent fraction of a day.

on a four-hourly basis

Uses "basis" to highlight a recurring schedule of four hours.

at four hour mark

Similar structure to 'every two hours' but specifies it at a four hour mark.

FAQs

What is the correct way to say "every four hour"?

The grammatically correct phrase is "every four hours". Remember to use the plural form of "hour" when referring to a time interval.

How can I use "every four hours" in a sentence?

You can use "every four hours" to describe the frequency of an action or event. For example, "The medication needs to be taken "every four hours"."

What is an alternative to saying "every four hours"?

Alternatives include "once every four hours", "at four-hour intervals", or "four times a day", depending on the context.

Is there a difference between "every four hour" and "every four hours"?

Yes, "every four hour" is grammatically incorrect. The correct phrase is "every four hours", using the plural form "hours" to indicate a recurring interval.