You should say "XYZ sobat"
For ex --
AaiSobat (please note it's one word) - with mom
BaabaanSobat - with dad ( Baabaan & not Baabaa to show respect)
DadaSobat - with brother
TaaiSobat - with Sister
Sobat is the most common word.
Two other words which are not so commonly used are "sange" & "sah" -- aaiSange , TaaiSah