我跟着他是为了弄明白他要做什么.(汉译英)

问题描述:

我跟着他是为了弄明白他要做什么.(汉译英)
I _______ him ______ _____ out what he _____ to do.

I follow him to find out what he wants to do.
I followed him to find out what he wanted to do.