Yes, there is. For the subject markers it looks like this:
1st singular : ni- 1st plural : tu- 2nd singular : u- 2nd plural : m- 3rd singular : a- 3rd plural : wa-
By the way. The m/wa form you mentioned is only one of the possibilities. It also depends on the noun class. There exist many word classes, but fortunately it is quite predictable. For instance, words from the ki/vi class of nouns, would usually start with ki or ch in singular and vi or vy. An example sentence would be "Kiazi kimoja kinatosha" - "One potato is enough". You see now that all the words start with ki and that is because of the noun class of kiazi, which means potato. This word class is a particularly easy one, but others do also have similar systems, and are more or less predictable.
So therefore, a good idea is to try to acquaint yourself with the different word classes. It will help a lot.