Question

I didn't feel comfortable doing this.怎么解释doing

Answer 1

I didn't feel comfortable doing this.

有两个办法来解释你的句子

1 时间状语从句：

I didn't feel comfortable when / while I was doing this.

2 动名词结构：

I didn't feel comfortable IN doing this.

(in doing sth-------解释为：在做某事的时候)