Nouns

Distinguishing between abstract (love, freedom) and concrete (table, dog) nouns

Understanding count nouns (a book, two books) vs mass nouns (water, information)

Nouns that don't follow regular -s/-es plural rules

Showing ownership with 's and of: John's book, the leg of the table

Regular plural rules: add -s, -es, -ies, and special cases

Nouns for groups that can take singular or plural verbs

Two words forming one noun: toothpaste, bus stop, mother-in-law