Questions & Answers about Na rubuta lambar bibiya.
In this sentence, na is the normal 1st-person singular perfective subject marker. Hausa often combines the subject with the aspect marker, so na rubuta means I wrote / I have written.
Ni is the independent pronoun I / me, and it is more often used for emphasis or contrast. For example, Ni na rubuta lambar bibiya would mean I wrote the tracking number, with extra emphasis on I.
It can mean either, depending on context.
The Hausa form here is perfective/completive, so it shows that the action is completed. In English, that may be translated as:
- I wrote
- I have written
The surrounding context decides which one sounds best.