1. Plural and Singular Nouns

2. Plural Nouns 
A plural form of a noun names more than one. It usually ends with s or es.
Flowers
Cherries
Potatoes

3. Add es to make nouns plural that end with s, x, sh and ch
Toothbrushes
Buses
Boxes
Benches
Bus
Box
Toothbrush
Bench

4. Add ies to make nouns plural that end with a consonant and a y:
Ladies
Butterflies
Lady
Butterfly

5. Add ves to make nouns plural that end in f or fe
Wolves
Knives
Wolf
Knife

6. nouns that end in o change to es when made plural. Some change to s:
nouns ending in o after a consonant, add es
Nouns ending in vowel +o have plurals in s  
Tomato
Tomatoes
Radio
Radios

7. Some nouns do not change at all when made plural:
Sheep
Fish
Deer
Sheep
Fish
Deer

8. Some nouns become a new word when made plural:
Goose - Geese
Child - Children
Mouse - Mice

9. What is the plural form of:
Baby
Babies
Leaf
Leaves
Pony
Ponies
Witch
Witches
Volcano
Volcanoes
Snake
Snakes
Church
Churches