Generally they will say good morning, which is "bore da", or good afternoon "prynhawn da" as greetings, "Hi" or "Hello" are not usually used.
"She is" would be "mae hi" in Welsh.
hi yn gantores
Faint o'r gloch yw hi? What time is it?
"Hi" either isn't a word in Welsh, or it's just "Hi." Hello in Welsh is "Helo." Hope this helped =)
gwnaeth hi
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 term for great grandfather in Welsh is "hen daid."
Welsh has gender so everything is 'he' or 'she'. 'It is' can be 'mae e' or 'mae hi'
pili-pala
If you mean 'elle' as in French, it is hi.
heulog ( hi - log)
Cymraeg