How to get from chorus/bridge to verse?

I wrote what I think is a chorus followed by a bridge. What are some tips for finding the chords for a verse? I usually write verses and choruses and stay away from bridges altogether. However, this piece just came to me this way and is the reverse of how I usually write.

The chords for the chorus and bridge go like this:

bridge:

C/Em/C/C

chorus:

G/Am/G/Am

or something like that.

I think the verse needs a C in it at the end (to lead up to the G in the chorus), but other than that I'm lost.

Any tips greatly appreciated.

Thanks,
R