what do you mean there are only ten tickets ther - be twelve

这里是should 本应该的意思译文：你说本来有10张票却有12张,参考：shall 1。将要,一般将来时,用于主语是第一人称的时候 I shall。。。或者we shall。。。2。应该,较少用,基本上可以不用就不用。should 1。将要shall的过去时 ,用法同shall 2。“应该”,主语随便是第一二三人称,都可以,较常用。will 将要,一般将来时用 He will go on studying after graduation。would 1。将要,过去将来时,He would go on studying when he had graduated。2。过去常常会 He would go fishing at that time。他那时经常去钓鱼。3 I would like。