What would be the problem if a 1994 grand Cherokee cannot start?

first check each spark plug to see if your getting spark if there is no spark check the plug wires for any breaks in the wires also the distributor cap and rotor for wear or corrosion. also check the coil. if engine does have spark check to see if the engine is getting fuel if the engine is not getting fuel check the fuel pump. also check cylinders for compression.