Scene 1

1. There is a soft mutation, or initial consonant change in Welsh, which occurs in many places. After Ga'i is one.

Here is the list again, with examples:

p - b: pwdin - e.e. Ga'i bwdin Nadolig?
t -d: te - e.e. Ga'i de?
c - g: coffi - e.e. Ga'i goffi?
b - f: brechdan - e.e. Ga'i frechdan?
d - dd: dŵr - e.e. Ga'i ddŵr?
g - _ : gwin coch - e.e. Ga'i win coch?
ll - l: llysiau (vegetables) - e.e. Ga'i lysiau?
m - f: menyn (butter) - e.e. Ga'i fenyn?
rh - r: rhywbeth (something) - e.e. Ga'i rywbeth?

2. The answer to a "Ga'i" question is
Cewch - yes you may or Na chewch - no you may not
(formal) or
Cei - yes you may or Na chei - no you may not (familiar)

Scene 3

1. A couple of mutation points to remember. There is a treiglad meddal, or soft mutation after two - dau or dwy. For example,

car = dau gar
punt = dwy bunt
te = dau de

If you're not sure if something is masculine or feminine, check a dictionary.

2. Another useful and important point is that you don't use plurals after numbers in Welsh, so two cars in English, is dau gar, or literally two car. More examples:

Deg coffi = ten coffee (meaning ten coffees)
Tri llyfr = three book (meaning three books)

3. Checklist of numbers 1- 50

1. Un
2. Dau
3. Tri / Tair
4. Pedwar / Pedair
5. Pump
6. Chwech
7. Saith
8. Wyth
9. Naw
10. Deg
11. Un ar ddeg (or un deg un)
12. Deuddeg (or un deg dau)
13. Un deg tri
14. Un deg pedwar
15. Un deg pump
16. Un deg chwech
17. Un deg saith
18. Un deg wyth
19. Un deg naw
20. Dau ddeg
21. Dau ddeg un
22. Dau ddeg dau
23. Dau ddeg tri
24. Dau ddeg pedwar
25. Dau ddeg pump
26. Dau ddeg chwech
27. Dau ddeg saith
28. Dau ddeg wyth
29. Dau ddeg naw
30. Tri deg
31. Tri deg un
32. Tri deg dau
33. Tri deg tri
34. Tri deg pedwar
35. Tri deg pump
36. Tri deg chwech
37. Tri deg saith
38. Tri deg wyth
39. Tri deg naw
40. Pedwar deg
41. Pedwar deg un
42. Pedwar deg dau
43. Pedwar deg tri
44. Pedwar deg pedwar
45. Pedwar deg pump
46. Pedwar deg chwech
47. Pedwar deg saith
48. Pedwar deg wyth
49. Pedwar deg naw
50. Pum deg