As a verb:
* "I converted the old barn into a studio." (Meaning: changed it)
* "She converted to Buddhism." (Meaning: changed her religion)
As a noun:
* "The new converts joined the church." (Meaning: people who have been converted)
* "He was a strong advocate for the conversion of solar energy." (Meaning: the act of changing something to a different form or use)
To determine whether "converted" is a noun or verb in a sentence, consider the context and how it functions in the sentence. If it is performing an action, it is a verb. If it is the subject or object of the sentence, it is a noun.