ok mechanics or who ever had this problem and fixed it.. i have a 98 ford escort

[Wes B]

with a clutch pedal problem.? when i first bought the car the clutch pedal, when pressed down, would loose pressure and start engaging the clutch. and sometimes the pedal would stick to the floor. so i replaced the slave cylinder and it seemed to gradually go away. but now not even 6 months later its starting to do the same thing. anyone know if it could be something else like the clutch master cylinder. or bad lines? any help on what i can do to check whats really causing would be a huge help. sorry for the run on sentences and misspelling. thank you for u time