Let's take a look at how to pronounce the vowels ai in Gaelic.
The ai sound (without a grave accent) is pronounced like “aye,” and can be heard in chaidh (went):
the driver went
Ài with a grave accent is pronounced differently, and can be heard in fàilte (welcome):
Finally, if the ai sound occurs at the end of a word followed by dh, it is pronounced like the English “i.” This can be heard in feumaidh (must):
I must go