ego, thank you for that reply.
yes the "i" is a predicate marker and is only used in third person status. in the words like save and hamamas, i listen to tok pisin news at http://www.radioaustralia.net.au/tokpisin/
and i hear the word save pronounced save, that is the stress is on the "a", for hamamas, the stress is on the first "a" hamamas, i will talk about the stress in the later lesson, the word "husat" means who, but in some curcomstances it is used as "what", it seems a little strange to me too. yes, you can say "me save go" vut remember with that "go" if you inclued the obeject than it must be "goim".