Questions & Answers about Tsaba tana nan.
Because Hausa normally uses a subject-agreement form inside the clause. Tsaba names the thing, and tana agrees with it and helps build the predicate.
So the structure is roughly:
tsaba + tana + nan
noun + agreeing subject form + location
English does not usually do this, so it can feel like the subject is being repeated.
Here, tana means something like it is or she is for a feminine singular subject.
In tana nan, the whole expression means is here. So in this sentence, tana is not a separate action verb like eat or go. It is part of the locational pattern.
Because tsaba takes feminine singular agreement in Hausa.
Hausa nouns belong to agreement classes often called masculine and feminine. For things that are not people, this is grammatical gender, not biological sex. So a noun can be grammatically feminine even if it is an object.
That is why the sentence uses ta- in tana, not ya-.