Prepositions are little words that indicate direction, time, place, etc. They are followed by a noun.

Grown-up teeth

Fangs

Biting

Bite

Complain

Snapped

Adverbs can describe verbs, adjectives, other adverbs, or even the whole sentence.

Napkins

Suit

Slippers

Clown

Ceiling

Buddies

Puddle

Mopped

Adjectives describe nouns and have two common patterns in English.

Seemed

Untagled

Grip

Shove

Ripped

Plain

Managed

Eyeing

Verbs are the action or state of being in a sentence. Verbs usually follow a subject and can be followed by an object. With imperative verbs, the subject is dropped.

Slightly

Dragging

Fool

Dashed

Nouns are people, places, or things. Nouns and pronouns can be subjects of a sentence, objects of a sentence, or objects of a preposition. Nouns are often preceded by an article (Art), including a, an, the, a number (one, two), a quantifier (many, a few), or a possessive adjective (my, their).

Tinkle

Dozen

Somehow