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"is known to affect" vs "has known to affect"

The correct phrase is "is known to affect." The verb "is" is needed to form the passive voice in this context, followed by the past participle "known." The phrase indicates that something is recognized or acknowledged to have an impact.

Last Updated: March 29, 2024

is known to affect

This phrase is correct and commonly used in English.

This phrase is used to indicate that something is recognized or acknowledged to have an impact on something else.

has known to affect

This phrase is incorrect in English.

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