believe的形容词变副词

Many local people believe the development will profit them.

当地的许多人认为，这项开发将对他们有利。

I can't believe how much better I feel.

真想不到我觉得好多了。

It would be interesting to know what he really believed.

了解他的`真实信仰会是很有意思的.。

If you don't believe me, go and see for yourself!

要是不信我说的，你自己去看看！