5. Final Y. If final y is preceded by a consonant, change y to i when you add a suf-
fix.
apply + ed = applied (Y changed to i.)
friendly + er = friendlier
noisy + est = noisiest
But notice the following forms:
apply + ing = applying
(Y does not change to i if the suffix begins with i.)
play + er = player
(Y does not change to i if y is preceded by a vowel.)
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