The event-grounded compound sentences of time can be classified into three types:the anterior, the simultaneous and the posterior. The characteristic of the anterior event-grounded compound sentences of time finds expression in the event reference of the clause of time while the event of the main clause occurs before that of the clause of time. The primary indicator of such compound sentences is "yijing (already)", which is used in the main clause to form the basic sentence pattern of "VP1 and yijing VP2". This sentence patt...