Certain nouns that end in o also need -es to become plural (potato/potatoes, hero/heroes, volcano/volcanoes).
For nouns that end in f or fe, change the f to a v and add -es (knife/knives, wolf/wolves).
If a singular noun ends in a single consonant followed by y, change the y to i, and add -es (lady/ladies, spy/spies).
For nouns that end in f or fe, change the f to a v and add -es (knife/knives, wolf/wolves).
If a singular noun ends in a single consonant followed by y, change the y to i, and add -es (lady/ladies, spy/spies).
Certain nouns that end in o also need -es to become plural (potato/potatoes, hero/heroes, volcano/volcanoes).
For nouns that end in f or fe, change the f to a v and add -es (knife/knives, wolf/wolves).
If a singular noun ends in a single consonant followed by y, change the y to i, and add -es (lady/ladies, spy/spies).