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 case ({EN,J,K}) 3'b100: Q<=Q; 3'b101: Q<=1'b0; 3'b110: Q<=1'b1; 3'b111: Q<=~Q; endcase end endmodule