How do you use the word classes in a sentence?

Here are some examples of how to use "word classes" in a sentence:

* General usage: "Understanding word classes is fundamental to learning any new language."

* Grammar focus: "In English grammar, nouns, verbs, adjectives, and adverbs are considered the major word classes."

* Specific example: "The word 'quickly' is an adverb, belonging to the word class of adverbs."

* Comparison: "While English has eight main word classes, other languages might have different categories."

* Teaching: "The teacher explained the different word classes to the students, using examples from the text."