Mwynhewch eich gwyliau.
Gobeithio y byddwch yn cael gwyliau braf.(I hope you have a nice holiday.)
da
Prynhawn da,.often pronounced P'nawn da, is "good afternoon" in Welsh.
ffrindiau mawr
Dw i'n dda iawn!
Cael amser da.
You can say "I am Welsh" by simply stating "I am Welsh" in English. In Welsh, you would say "Cymraeg ydw i" (I am Welsh).
The only person who would understand what you said would be a Welsh person, so what good would it do you to know how to say it?
Ast noson dda
"Nos da, Tad"
Ffarwél gyfaill da.
Bore da, cariad.