2. In the question of "なぃ", the first one is an adjective, which translates as "no …"; The second should be an auxiliary verb. (When judging the part of speech of な, if it is preceded by a verb, then it is an auxiliary verb; If it is preceded by a noun or adjective, it is a subsidy adjective; If used alone, it is an adjective.

たぃ is an auxiliary verb.