English Plural Formation
Overview
Learn how to form the plurals of nouns

Singular and Plural Nouns
Singular = one Plural = two or more
The plural form of a noun usually ends in -s, -ies, or -ses
- A rose – roses
- A bus – busses
- One month – months
- One year – years
- A baby – babies
- One day – days
- A knife – knives
- A shelf – shelves
- A potato – potatoes
Some plurals do not end in -s, -ies, -ses. Those are irregular plural nouns.
- Man – men
- Woman – women
- Child – children
- Tooth – teeth
- Mouse – mice
- Sheep – sheep
- Fish – fish
- Person – people
Some words are always plural:
- Scissors
- Jeans
- Pants
- Shorts
- Glasses
- Pajamas
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Additional Topics

This unit covers subordinating conjunctions, including after, although, because, before, if, and since. These occur at the beginning of subordinate or dependent clauses, and are used to combine independent and dependent clauses together.
Common European Framework of Reference for Languages
The CEFR is an international standard used to describe language ability. Here are specific details of the CEFR for this topic.