The eight parts of speech in English are:
Noun: Names a person, place, thing, or idea.
Example: Dog, city, happiness.
Pronoun: Replaces a noun.
Example: He, she, it, they.
Verb: Describes an action or state of being.
Example: Run, is, seem.
Adjective: Describes or modifies a noun.
Example: Red, quick, tall.
Adverb: Describes or modifies a verb, adjective, or other adverb.
Example: Quickly, very, well.
Preposition: Shows the relationship between a noun (or pronoun) and other words in a sentence.
Example: In, on, at, between.
Conjunction: Connects words, phrases, or clauses.
Example: And, but, because, although.
Interjection: Expresses strong emotion or sudden feeling.
Example: Wow, ouch, hey.