I am doing this lesson on my break at work. Every time this question comes up, i am like, "No, I'm on break! You're as bad as my supervisors, Duolingo!"
why is "fini" not allowed? wouldn't "finas" be "do you finish your work"?
fini means "to finish", a verb standing alone can't be in the infinitive tense.
are you finishing your work = do you finish your work (synonyms)
ĉu vi finis kun tiuj celoj? (Mi ne scias, ke "celo" estas prova. Mi volas diri "errand".)