Every single word we use in a sentence belongs to a larger grouping in the English language called parts of speech. In simpler terms, it’s safe to think of the parts of speech in English grammar as a moderately-sized puzzle and all of its elements the pieces. Just like any puzzle, the picture just isn’t clear without all its parts.
Conjunctions have one primary function: to connect words, phrases, and clauses. You can think of conjunctions like referees because they coordinate.
Dialogue is anything the people or characters actually say in your writing. You should use dialogue whenever you’re wanting to indicate that someone is speaking in your story, personal essay, or novel.
Adverbs indicate when, where, how, and to what degree. You can think of an adverb as a more descriptive word that spruces up the main word or words in a sentence.
Adjectives are descriptor words that modify nouns. Any word you use to describe a particular person, place, or thing qualifies as an adjective.