1 - one (uan)
2 - two (tu)
3 - three (thri)
4 - four (for)
5 - five (faiv)
6 - six (siks)
7 - seven (sevn)
8 - eight (eit)
9 - nine (nain)
10 - ten (ten)
11 - eleven (ilevn)
12 - twelve (twelv)
13 - thirteen (thirtin)
14 - fourteen (fortin)
15 - fifteen (fiftin)
16 - sixteen (sikstin)
17 - seventeen (sevntin)
18 - eighteen (eitin)
19 - nineteen (naintin)
20 - twenty (twenti)