manual trans, shifts great in all foward gears but reverse hesitates a second on 2001 Hyundai Sonata

My manual transmission seems find all except when I put it in reverse it hesitates 3 to 5 seconds before it engages but then is find but it has been acting this way for a couple months and gets know worse but does it ever time

Asked by for the 2001 Hyundai Sonata