Are you trying to build up flip-flops and counter circuits from the very basic building blocks? Wikipedia has some excellent information on the subject. Read it carefully, think on your own for a little bit more knowledge, and you should be in business.
Please note that the old version of this Wikipedia article linked has a JK flip-flop schematic. It unfortunately got removed from the latest version.
20190704/https://web.archive.org/web/20160112032651/https://en.wikipedia.org/wiki/Flip-flop_%28electronics%29
20190704/https://en.wikipedia.org/wiki/Counter_%28digital%29
20190704/https://en.wikipedia.org/wiki/File:4-bit-jk-flip-flop_V1.1.svg
20190704/https://en.wikipedia.org/wiki/File:DecadeCounter.jpg