There is no possibility of our cutting the price to extent y

There is no possibility of our cutting the price to extent your required.
There is no possibility of our cutting the price to extent your required.
请高人分析一下这个句子,尤其是 possibility of our cutting the price 这部分,实在是弄不明白什么结构.而且 of 后为什么要用our,不用we

很显然句子主干是There is no possibility to extent your required,由of介词短语作possibility 的定语,of 后面接动名词,所以是possibility of cutting the price ,即降价的可能性,这里面又加了个our,是规定范畴的,即强调 我们 降价的可能性. 至于为什么不能用WE,呵呵,举个例子,her leaving made me sad.相同的道理.