Animate a staple


I am new. I need to animate the formation of a staple. I guess the best way to do this is by using a shape tween. The staple starts out like a three sided box- that is a regular, common, staple. After being formed it looks like a backward letter “B”.

When a staple is formed it is forced against two concave indents. This is the action I need to happen.

Can anyone help me on this?

I have two problems- one, I can’t add an anchor point to my straight lines on my “before” staple.

Second- the staple is “malformed” during the formation of the thing.

Real frustrating.

Anyway, I am happy to be part of your group. Thank you!