i has been is shanghai 5 years by next end of the month这句话有没有问题啊.说明理由,may you be happy 这句话是虚拟语气么,如果为什么be动词不用were呢

问题描述:

i has been is shanghai 5 years by next end of the month
这句话有没有问题啊.说明理由,may you be happy 这句话是虚拟语气么,如果为什么be动词不用were呢