It takes---to----
Examples
1. It takes a lot of guts to stick with what you believe is right even
when others criticize you for it.
2. It takes a lot of practice to be able to play the guitar and sing at
the same time.
3. It will take a while to understand how to do it.
4. It took a long talk, but I think we finally understand each other.
5. It takes great strength to admit when you're wrong.