what is group work?

what is group work? group work should be work in group, distribute the work at the group but i cant c my group? how to say? I think im not contribute fully in that group work. Either i group problem or they want to do solely their own. I do always sms them. I write how about v discuss the progress of the assignment but none of them reply me. Quite sad to know that. Then, at final things, they all start to do it. Okay, is fine. Yet, they all treat it as individual assignment. Do not discuss with the member and take decision individually.

Fine, during the date to pass. One of my coursemate who stay with my group member accuse me. What does she say? she said i not helping my member who done overnight for the assignment. I quite shock when hear that. At the night before handle the assignment, i got sms her and ask what can i help? but she never answer. then today suddenly come up to say i didnt help her to design....... I really sad.