-을 뻔하다

V+ ㄹ/을 뻔하다 This indicates that something almost happened, usually a dangerous or negative situation, and conveys feelings of surprise or relief. (almost~)

계단에서 넘어질 뻔했어요.

I almost fell down the stairs.

배고파서 죽을 뻔했네.

I almost died of hunger.

너무 매워서 울 뻔했어요.

It was so spicy that I almost cried.