General expressions of surprise or amazement:
* Oh là là ! (This is the most common and versatile expression.)
* Oh mon Dieu ! (Literally "Oh my God!" but used in a less religious context)
* Oh purée ! (Literally "Oh mashed potatoes!" - informal and used for mild surprise)
* Oh la vache ! (Literally "Oh cow!" - informal and used for stronger surprise)
* Oh mon dieu ! (Can be used for surprise, excitement, or dismay)
Expressions of admiration:
* Oh là là, c'est magnifique ! (Oh my, it's magnificent!)
* Oh mon Dieu, c'est incroyable ! (Oh my God, it's unbelievable!)
* Oh là là, quel talent ! (Oh my, what talent!)
Expressions of dismay or shock:
* Oh mon Dieu, c'est pas possible ! (Oh my God, it's not possible!)
* Oh là là, je n'arrive pas à y croire ! (Oh my, I can't believe it!)
* Oh purée, c'est terrible ! (Oh mashed potatoes, it's terrible!)
The best way to choose the right expression is to consider the context and your intended emotion.