Below is a list of keywords provided by verilog in alphabetical order.
always and assign attribute begin buf bufif0 bufif1 case casex casez cmos deassign default defpram disable edge else end endattribute endcase endfunction endmodule endprimitive endspecify endtable endtask event for force forever fork function highz0 highz1 if initial inout input integer join large macromodule meduim module nand negedge nmos nor not notif0 notif1 or output parameter pmos posedge primitive pull0 pull1 pulldown pullup rcmos real realtime reg release repeat rtranif1 scalared signed small specify specpram strength strong0 strong1 supply0 supply1 table task time tran tranif0 tranif1 tri tri0 tri1 triand trior trireg unsigned vectored wait wand weak0 weak1 while wire wor xnor xor