ask和hold为什么用这种形式啊?

问题描述:

ask和hold为什么用这种形式啊?
Vernon,i have never asked (ask)you for money.
Ronald stood there holding(hold)the bag as if were the most important job on earth.
ask为什么要用过去分词形式?hold为什么用现在分词?求讲解语法知识啊!

ask用在助动词have后应该使用过去分词形式asked,与have一起构成现在完成时
holding为动词的现在分词,在句中作伴随状语