What part of speech are the words badly and on?

Here's the breakdown of the parts of speech for "badly" and "on":

* Badly: Adverb

* Adverbs modify verbs, adjectives, or other adverbs, providing information about how, when, where, or to what extent something happens.

* Example: "He played the piano badly." (modifies the verb "played")

* On: Preposition

* Prepositions show the relationship between a noun or pronoun and other words in the sentence.

* Example: "The book is on the table." (shows the location of the book)

Let me know if you'd like to know the parts of speech for other words!