Řadové číslovky
1st = first
2nd = second
3rf = third
4th = fourth
5th = fifth
6th = sixth
7th = seventh
8th = eighth
9th = ninth
10 = tenth
11 = eleventh
12 = twelfth
13 = thirteenth
20 = twentieth
21 = twenty-first
22 = twenty-second
30 = thirtieth
31 = thirty-first