Has Tom been late,这是什么时态

Has Tom been late,这是什么时态 英语语法求助Mr.D has been worried all week.这句话是什么时态?has been worri have/has+been to是什么时态 have/has/had加been是什么时态 have／has been是什么时态?请举例? have/has been+过去分词是什么时态? have has been 是什么时态的 have /has been doing 是什么时态 he has never been abroad是什么时态 为什么有been he has not been out today.这句话是什么时态?怎么看的?结构是什么, 这句英文是什么时态His mother has been exerting a lot of pressure on h 请问大虾们,这句英语是什么句型,has been 表示什么时态