oh no...,whats that....oops...oh god....ohhhh.....huuuu...which word??

If I'm talking (and thinking) in English then I just say a short and shap 'damn!' but that happens rarely as I'm usually thinking in Italian. Then I would say a long 'uffaaaaaaaaaa' which in English would probably be something like 'daaassshhhhh!'. Odd that when I say it English it's a much shorte sharper word whereas in Italian I say something which makes a longer lasting sound