From how I understand it, you dream every night as your body enters REM sleep, but you often don't remember dreams. You can try and train yourself to better recall your dreams and in doing so you may find that you "dream more often".
I'd say I have weeks where I remember my dreams, sometimes multiple, every night, and other times where I'll go a week or more without recalling any. It varies on a lot of things. In particular, I'll find if I stop smoking weed for about 4 or more days, I'll start remembering dreams vividly and frequently, but that'll lessen over 2 weeks.