Leo jioni, mimi nitaweka vitabu vyetu kwenye meza.

I

Breakdown of Leo jioni, mimi nitaweka vitabu vyetu kwenye meza.

• kitabu: the book
• meza: the table
• kwenye: on

Questions & Answers about Leo jioni, mimi nitaweka vitabu vyetu kwenye meza.

Why do we have mimi as well as ni- in nitaweka? Don’t they both mean I?

Yes, both refer to I, but they play different roles:

• ni- is a subject prefix attached to the verb: ni- + -ta- + -weka → nitaweka (I–FUTURE–put).
• mimi is the independent pronoun I / me.

In normal sentences, the verb prefix is enough, so you can say:

• Nitaweka vitabu vyetu kwenye meza. – perfectly correct.

Adding mimi gives emphasis or contrast, like:

• Leo jioni, mimi nitaweka vitabu vyetu, si wewe.
  (This evening, *I will put our books there, not you.*)

So mimi is optional and mainly used for emphasis, contrast, or clarity in conversation.

How is the verb nitaweka formed, exactly?