Questions & Answers about Ku rubuta amsa daidai.
- ku – you (plural); also used for polite singular in some contexts
- rubuta – to write / write!
- amsa – answer, response (a noun)
- daidai – correct, right, exact; correctly
So the structure is literally: You (plural) write answer correct(ly).
In Hausa, the bare verb (e.g. rubuta!) is the singular imperative.
To give a command to more than one person, you normally add ku:
- Rubuta! – Write! (to one person)
- Ku rubuta! – You (all) write! / Please write! (to several people, or politely)
So ku marks that the command is directed to you plural (or polite).
Primarily, ku is 2nd person plural, so Ku rubuta means “You (plural) write”.
In real life, speakers may also use ku to one person as a polite or respectful form, especially to an older person or someone of higher status. Context tells you whether it is plural or polite singular.