With their (claws)
you can dig any rock out of the ground
Yes, cats can dig holes in the ground.
It depending on how hard the ground is. If it is really hard he will only dig small holes in the ground, but I doubt he will dig a barrow.
in future tense - Will dig but! in future progressive - will be diging
dig into the ground
No
Dig him out of the ground.
If there is no wire in the bottom they certainly can and will dig out.
For transportation. It is also the best place to dig them.
They wont dig very deep, but they can burrow underneath and escape if the fence isn't deep enough into the ground.
Yes, they dig burrows with their powerful front claws.
dig under ground