Yes, the do. They believed that Siddhartha was tempted by evil spirits during his lifetime. However, Buddhists believe that evil spirits do not remain evil forever.
Yes, Buddhists do believe in evil spirits. They believe in Mara, evil personified, the devil who represents all that is evil, including sin, temptation, and dark desires.
I believe they do. if there is good spirits there are bad. however, they try to look more positive then bad. they believe that you can also cleanse bad spirits by doing some rituals.
Buddist neither beleive in God nor in evil spirits. They have a rational thinking for all that is happeneing and believe that human are in control of everything
Buddhists believe that if you do wrong things you will be reincarnated into a less powerful person, or an animal, etc. It really doesn't make sense at all, but as far as evil spirits, I do not believe that they do.
Buddhist beliefs are that everything has a spirit. They definitely believe that there are evil spirits and the spirit continues to live until they become good.