Present Perfect: только что, уже, еще (just, already, yet) A1-A2

Study these sentences.It has just happened. This means the same as: It happened a short time ago.It has already happened. This means the same as: It happened before we expected.It hasn't happened yet. This means the same as: We're still expecting it to happen.Has it happened yet? This means the same as: I want to know if something I expect to happen has happened.Note: yet is used only in questions and negative sentences