请问,这句里的have为什么要加ingI can't bear having a cat in the house

请问,这句里的have为什么要加ingI can't bear having a cat in the house 动词过去式加ingi missed seeting this film yesterday 为什么seet要加ing 英语好的进,I have to be going now,——这几句话为什么要加ingI have to going nowI have to leaving now.这两句话为什么go 与leave都要加ing,不加可不可以,为什么,楼下可以说祥细点吗。 这句话介词后面的动词为什么不加ingI‘ll just shash the dishes after we have dinner.这句话介词just后面的动词为什么不加ing The soldier is in danger of being hunt 这里in danger of后面为什么加being ,为什么不直接 hunt 加ingI appreciate being invited to the party .这里的appreciate 后面为什么又要加being 请问have为什么要加ing? 主句是一般现在时,从句用什么时态例如 he cut the tree and soon it fall down.纠正错误要把fall 改为fell 为什么?其次 问几道题、、I can hear someone shouting outside now.为什么加ingI‘ll go and have my hair to cut. Anyone having any problems about this question...请问这里的have 为什么要加ing? 能不能给我讲一下这些语法的用处?i had .i have.i have been ...ingi have been ...edi was takeni am takenstillalreadyyetalso 什么情况加ingI like playing basketball.请解释一下这种情况为什么play加ing,￥@%￥%￥￥……%￥……￥##@!￥#@**&（）……*……#@￥￥@￥# 请问大虾们,这句子为什么要加have呢He might have cooked the books. write的现在分词为什么是writing而不用双写t加ingi不是元音字母吗,那后面怎么不双写 英语完成时态的构成请问英语完成进行时态的构成为什么不是have,has加现在分词呢?为什么要加been呢? 英语好的进,You must have overslept.这句话为什么要加have呀,不加可以吗,为什么. 英语i do have one favor to ask请问这个句子为什么要加do?这里的do 如果能举几个这样的句子就更好 stand there watching为什么用ingi stand there watching her for ten minuties i stomachache为什么要加have a have problems 为什么要加doing