No brake lights???

Afternoon people, had a look on the search and find anything that helps so i,ll put it out here and see what you think.
as per the title i have know brake lights, i have thus checked all the bulbs, the fuse(the reverse lights are ok), the switch seems to be ok thou not really sure how check that.
Any ideas chaps?
Cheers Dean

have you checked the relay? should hear it clicking when you press the brake pedal