three decades ago or three decade ago?

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three decades ago

This phrase is correct and commonly used in English.

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This phrase is used to refer to a period of thirty years in the past.

Examples:

Three decades ago, the internet was not widely available.
I remember visiting that place three decades ago.

three decade ago

This phrase is incorrect in English.

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Alternatives:

three decades ago
thirty years ago
three ten-year periods ago
three sets of ten years ago
three periods of ten years ago

The correct phrase is 'three decades ago.' 'Decades' is the plural form of 'decade,' so it should be used when referring to a period of thirty years. 'Three decade ago' is incorrect because 'decade' should be pluralized to match the number three.

Last updated: March 08, 2024

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