Needing help with animation

Hey, I am a pretty new to blender and haven’t got to know all functions in the app, I am currently working on an animated film where my character is using the follow path constraint, I have a few frames I want it to stop following my path(which are bezier circles if that is for any help) so that the characters legs stop moving. I haven’t found anything on the web that could help me with the problem, and have been working day in and out to make this, just to end up here. Please help.
Sincerely, Loliolysser.