我本不

I originally didn't

→ 我
phrase Rare #31,277
I originally didn't Usually followed by a verb or adjective; 本 means “originally” and 不 negates what follows.
CH: 我本不想打扰你。
EN: I didn't originally want to bother you.

我本不应该做的。

I shouldn't have done it.

我本不想来,

I didn’t want to come in the first place.

— 蔷花,红莲 (2003)

我本不想说的

I didn't want to say anything in the first place.

— 美国黑帮 (2007)

我本不打算这么做

I didn't intend to do this.

— 城市英雄 (1993)