Final answer:
The correct verb to complete the sentence is 'peindre', which means 'to paint' in French.
Step-by-step explanation:
The correct verb to complete the sentence is peindre, which means "to paint" in French.
Therefore, the sentence should be:
Je suis artiste. J'aime peindre des portraits.
This verb is the most appropriate choice for the sentence because it matches the context of being an artist and the action of creating portraits.
Learn more about French verbs