at this time of year是什么時(shí)態(tài)

　　例句：

　　he goes to school at this time of the day.(現(xiàn)在時(shí))

　　he was playing game at this time of yesterday.(過(guò)去進(jìn)行時(shí))

　　he will be there at this time tomorrow.（將來(lái)時(shí)）