Ada is an equivalent to 'exist' and is often used to say or ask if something is here, there, or exists E.g. Ada susu? = Do (you) have milk? Ada is sometimes omitted in speech or, as in the example, used to omit other words (Do you have).
ı understand using to here there before but ı didint understand your example do you you have milk if we delete the ada (sorry for horrible english) what will the sentences mean ? do you have milk must mean too "kamu susu punya " right ? please expleain more better thanks
Adalah kamu punya susu? ... would be the full, formal expression. Ada, in this sentence is not necessary, and would very likely be omitted. However, most Indonesians would simply say, Ada susu? Literally, 'Is there milk?' Every language has its own expressions that, when translated, seem unusual to others.
still ı need to get accustomed to this when ı learn english then trying to know indonesn ı everytime conuse about it thank you for your help here ı gaved lingot what ever they working ı donno :D