Thank you: Guh rev mah agg utt

I can’t find the pronunciation of the other two, but, here are some other choices.

I would like a glass of water: Ba mhaith liom gloinne uisce “bah wah ly-um glinne-eh ish-geh”

or

I would like a glass of lemonade: Ba mhaith liom gloinne liomainéide. “bah wah ly-um glinne-eh lim-un-ay-dje”

Here’s another you might find useful:
Cá bhfuil leithreas na bhféar? “kah will LEH-riss na vahr” – Where is the Men’s Room?

For more phrases with phonetics, try:
http://www.irishcultureandcustoms.com/3Focloir/2Index.html

Hope that helps.

Go raibh míle maith agat! (Guh ruh meal/ah mawt ag/gut)
(literal: may you have a thousand good things!)

Go raibh maith agat. (Thank you)

Ní féidir liom deoch alcól. (I do not drink alcohol)
or
Ni olaim. (I do not drink)