French-what does 'tu as' mean

The question 'Tu fais quoi maintenant' means You're doing what now?, What are you doing now? In the Word-by-Word translation, the personal pronoun 'tu' means 'you'. The verb 'fais' is in the second person singular, and therefore means '[you] are doing, do do, do'. The interrogative/relative pronoun 'quoi' means 'what'. The adverb 'maintenant' means 'now'.