Practice 9

Singular and plural nouns

For the plural form of most nouns, add s.

• bottle – bottles
• cup – cups
• pencil – pencils
• desk – desks
• sticker – stickers
• window – windows

For nouns that end in ch, x, s, or s sounds, add es.

• box – boxes
• watch – watches
• moss – mosses
• bus – buses

For nouns ending in f or fe, change f to v and add es.

• wolf – wolves
• wife – wives
• leaf – leaves
• life – lives

Some nouns have different plural forms.

• child – children
• woman – women
• man – men
• mouse – mice
• goose – geese

Nouns ending in vowels like y or o do not have definite rules.

• baby – babies
• toy – toys
• kidney – kidneys
• potato – potatoes
• memo – memos
• stereo – stereos

A few nouns have the same singular and plural forms.

• sheep – sheep
• deer – deer
• series – series
• species – species