"Tell him that I will cook"

Translation: Mwambie kwamba nitapika

[piguy3]

Can "kwamba" be omitted?

[machieng]

yup

[BenMack8]

And where does it say we have to use thr you (pl) rather than the you (sing) form? 28062020

[StevePepper_Oslo]

It doesn’t, and we don’t!
The mw- is the 3sg object prefix (‘him’), not the 2pl subject prefix.

[Henniez]

Could you also say "mwambie nipike"? Or would this imply that i am cooking now?

[Benson130593]

amba - mwambia - mwambie...
preposional subjunctive....