All tools like cadence incisive, synopsys vcs, mentor graphics modelsim support transistor (switch level primitives) as defined in verilog standard. See those primitives here
tariq786 i tried the icarus but i didn't see that is able to create the schematic of the circuit. Do you know that can do it ?? (if yes please explain me how ?)
or if you mean that i can see the schematic via modelsim please explain me how .