Teacher
A teacher is a person!
Eugene Field Elementary School
Eugene Field Elementary School is a proper noun!
City -> Cities
It is spelled correctly! Because there is a 'y' at the end of the word, the ending changes to -ies.
Playground
A playground is a place!
Dog
Dog is a common noun!
Strawberry -> Strawberres
Because there was a 'y' at the end of the word, you need to add -ies to the end of the word. So the correct spelling is Strawberries!
Basketball
Basketball is a thing!
River
A river is a common noun, what if I said the Missouri River?
Wolf -> Wolfs
For words that end in an 'f', you need to add -ves to the end of the word to make it plural. The correct spelling is wolves!
The Moon
The Moon is a place!
Nintendo Switch
A Nintendo Switch is a proper noun!
Fox -> Foxes
This is the correct spelling! Because the word ends in an 'x' you need to add the -es ending.
Vacation
Vacation is a thing!
Google is a proper noun!
Tomato -> Tomatoes
This is the correct spelling! For words that end with an 'o', you need to add the -es ending.