Pronouns: replace nouns. Examples: I, you, he/she, it, they, we.
Adjectives: describe a noun or a pronoun. Example: tall, fat, thin, blue, fast, round, hot.
Verbs: describe an action or a state. Example: sing, eat, Study, live, run, work, read.
Adverbs: describe a verb or adjective. Example: Young, old, intelligently, happily, good, bad, big, small.
Prepositions: show a relationship of place, time, location, or direction between words. Example: in, on, to.
Conjunctions: connect words, phrases, and sentences. Example: and, so, but, because.
Interjections: express emotion or surprise. Example: Yeah, Wow, Oops, Oh no, Heyy, Ouch!.
Examples:
1. Their gray dolphin swims and jumps nimbly into the depths of the ocean.
• Noun: Dolphin
• Adjective: Gray
• Verbs: Swims and jumps
• Conjunction: And
• Adverb: nimbly
• Preposition: into and of
• Pronoun: Their
2. The red maple is the most important tree in Canada because its sap is used to produce maple syrup.
• Noun: Maple
• Adjective: Red
• Verbs: Is used and Produce
• Conjunction: Because
• Preposition: in and to
• Pronoun: Its
3. We are the only people who have blue eyes inside the classroom.
• Noun: People
• Adjective: Only
• Verbs: are and have
• Preposition: Inside
• Pronoun: We
This is what I understand; I hope you like it and find it useful.