How do you plan to solve it?
module jk_ff_enable ( input CLK, input EN, input J, input K, output reg Q ); // Write your code here always @(posedge CLK) begin casez({EN, J, K}) 3'b0??, 3'b100: Q <= Q; 3'b101: Q <= 0; 3'b110: Q <= 1; 3'b111: Q <= ~Q; endcase end endmodule