* Verb (past tense): This is the most common use of "stung." It describes an action that has already happened. For example: "The bee stung me."
* Adjective: This is less common, but "stung" can be used as an adjective to describe something that feels painful or sharp. For example: "He had a stung look on his face."
* Participle: "Stung" can also function as a participle, which can act as an adjective or part of a verb phrase. For example: "He was stung by the bee." (adjective) or "He has been stung by the bee." (part of a verb phrase)
To determine the part of speech, you need to look at the context of the sentence.