How do you make the numbers 11-20 with four 4's only?

Answer 1

0 = [4 + 4 - (4 + 4)]

1 = [(4 + 4) / (4 + 4)]

2 = [4 * 4 / (4 + 4)]

3 = [(4 + 4 + 4) / 4]

4 = [4 + 4 - √4 - √4]

5 = [√4 + √4 +(4/4]

6 = [4 + √4 + 4 - 4]

7 = [4 * √4 - 4/4]

8 = [4 + 4 + 4 - 4]

9 = [4 + 4 + {4/4}]

10 = [44 - 4/4]

11 = [4!/√4 - 4/4]

12 = [4 * 4 - √4 - √4]

13 = [4! / {√4 + 4/4]

14 = [4 + 4 + 4 + √4]

15 = [4 * 4 - 4/4]

16 = [4 * 4 + 4 - 4]

17 = [4 * 4 + 4/4]

18 = [4 * 4 + 4 - √4]

19 = [4! - 4 - 4/4]

20 = [{4 * 4} + √4 + √4]

Sorry if u wanted an answer not using ! or √ but I haven't figured them out yet though I only need 4 more which are 13, 14 ,18 and 19 if u know the equations for any one of them then please tell me. And also if you need others not including ! or √ which r between 0 to 20 than tell me I'll tell ya