There are two sections in this resource:
Overview of Adding Suffixes that Change Base Words’ Final y to i
The estimated time to complete this resource is 15 minutes.
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When the final y of a base word is preceded by a consonant, the y changes to an i when a suffix is added, regardless of whether the suffix begins with a vowel or a consonant.
Teach students the final y rule: If a base word ends in consonant-y, change the y to i before adding the suffix.
The suffix -es is added to a base word ending in consonant-y, rather than the suffix -s, as in puppy – puppies and city – cities.
The final y does not change when the suffix begins with i (e.g., ing, ish) because doing so would create an awkward spelling (e.g., study becomes studying, not studiing). Teach this exception after students have mastered the final y rule. When initially teaching this concept, do not include examples with -ing or -ish suffixes.
The i usually retains the sound of the y in the base word. For example, in marry and married, both the y and i make the long e sound; in cry and cries, both the y and i make the long i sound. There are a few exceptions, however, such as happily, plentiful, and easily.