not put it past someone

believe someone to be capable of doing something wrong or rash

認(rèn)為某人有可能會(huì)做（錯(cuò)事，輕率的事）

I wouldn't put it past him to slip something into the drinks.

我認(rèn)為他有可能在這些飲料中偷偷加了什么東西。

past it

(informal)too old to be of any use or any good at anything

(非正式)（因年老）變得沒用的，做不好任何事的