Read the rule and group the words
-y at the end of the words
Add just -s to the nouns ending in vowel + -y:

• key → keys,
• toy → toys.

Change -y to -ies in the nouns ending in consonant + -y:

• pony → ponies,
• family → families.

Boy, Day, Journey, Toy, Key, Monkey, Donkey, Country, Cherry, Puppy, Lady, Party, Family, Story

-s	-ies