Clutch problems
If it is an external slave cylinder way to figure out if it is messed up is for you to locate the slave and have a buddy push down on the clutch pedal. (it should be near where the tranny mates with the motor). If you see the slave cylinder push on the clutch fork then your problem is most likely not the slave cylinder.
If it is an internal cylinder have someone push on the pedal and if it is bad you should be able to hear is squirt fluid inside the tranny when it is pushed down.
Hope this helps.

