You can hardly imagine what difficulty I had --------Alice to give up the foolish idea.

Question

横线处为什么添persuading 而不是persuaded

Answer 1

一个语法结构 imagine doing something.

即 ...imagine pursuading Alice to give up the foolish idea.

what difficulty i had 是imagine 的宾语从句，表示强调。

翻译为：你几乎不能想象我说服她放弃那个愚蠢的想法有多么困难。

Answer 2

这个句子带有强烈的感情色彩，因此用persuading来表示情感

Answer 3

在说服她的时候有很大困难。