Animator not giving information

I'm trying to set up the animator for my character and it seems to be working well for the running and idle animation so far but nor for the jump animation, the setup is shown below, I tried adding a SetTrigger for the jump animation but it it doesn't go back to the other animations when in contact with the ground so I assume my IsGrounded bool isn't working or something, can someone please give me a way to fix this? I will post my code if needed.