once every four years vs every four years

Both phrases are correct, but they are used in slightly different contexts. 'Once every four years' emphasizes the singular occurrence within a four-year period, while 'every four years' simply states the frequency of an event happening. The choice between them depends on whether you want to highlight the specific occurrence or just the regular interval.

Last updated: March 30, 2024

once every four years

This phrase is correct and commonly used to emphasize a singular occurrence within a four-year period.

This phrase is used to highlight a specific event that happens only once within a four-year cycle.

Examples:

The Olympics are held once every four years.
The World Cup takes place once every four years.

Alternatives:

every four years

every four years

This phrase is correct and commonly used to indicate the regular frequency of an event happening every four years.

This phrase is used to describe events that occur at regular intervals of four years.

Examples:

The presidential elections are held every four years.
The leap year occurs every four years.

Alternatives:

once every four years

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once every four years vs every four years