ai, au, ou, ea, oi

How to pronounce each of these sounds in French:

"ai" - Pronounced like the "ay" in "day."

"au" - Pronounced like the "oh" in "go."

"ou" - Pronounced like the "oo" in "moo."

"ea" - There isn't a direct equivalent in English, but it's somewhat similar to the "ay" in "say," but with a more closed mouth.

"oi" - Pronounced like the "wa" in "water."

These are just approximate English equivalents, as French sounds don't always have perfect matches in English. 

It's best to listen to native speakers and practice to get the nuances of pronunciation just right.