"Solas na bhflaithis go raibh air" means "the light of heaven on him"
"I bhFlaitheas Dé go raibh sí" "In the Kingdom of God may she be."
Go raibh maith agat (singular) Go raibh maith agaibh (plural)
"that was"
Go raibh maith agat (pronounced Gurra mah ogguth)Go raibh maith agat
"go raibh agat mo chara" means "Thank you, my friend"
(if speaking to one person) Go raibh maith agat. Literally it means "May there be good on you". It would be pronounced: "G'rev ma agut" (if speaking to more than one) Go raibh maith agaibh
"Haigh agus go raibh maith agat" means "Hi and thank you" Haigh is "Hi" agus is "and" go raibh maith agat is "thank you"
Go raibh míle maith agat as ucht an cuireadh (singular) / Go raibh míle maith agaibh as ucht an cuireadh (plural)
It's 'Go raibh maith agat, a chara' and means 'Thank you, friend' in Irish.
Go raibh maith agat (pronounced Gurra mah ogguth)Go raibh maith agat
You can say it as you've stated as English is the main language in Ireland. There is also an Irish language and to say thank you in it you would say "Go raibh maith agat." This would be pronounced "G'rev ma agut."
Well a hundred thousand thank you's is "Go raibh céad míle maith agat/agaibh", but usually in Irish we don't say it like that.Céad míle is used to say welcome (as in "Céad míle fáilte").For thank you we usually say "míle míle" which means "a thousand thsousands"-Go raibh míle míle maith agat (singular)Go raibh míle míle maith agaibh (plural)