When a word ends with a y preceded by a consonant, you should change the y to i when you add any suffix other than -ing; however, when a word ends with a y preceded by a vowel, you should keep the y and add the suffix.

Question

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When a word ends in a y preceded by a consonant, the y is typically changed to an i before adding any suffixes (except -ing). However, if the y is preceded by a vowel, the y is kept and the suffix is added directly.

When a Word Ends with a Y Preceded by a Consonant