Mild Surprise:
* Μα (Ma): A simple, almost unnoticeable interjection, like "Huh?" or "Really?" in English. It shows mild surprise or disbelief.
* Ωχ! (Och!): Similar to "Oh!" in English, expressing a mild, often slightly negative surprise.
* Α! (A!): A simple exclamation of surprise, similar to "Oh!" or "Ah!".
Moderate Surprise:
* Τι λες!; (Ti les!): Literally "What are you saying?", but used as an expression of surprise or disbelief.
* Δεν το πίστευα! (Den to pisteva!): "I didn't believe it!" A common way to express surprise at something unexpected.
* Πω πω! (Po po!): An expressive interjection of surprise, often combined with other expressions.
* Κι αυτό; (Ki afto?): "And this/that too?" Expresses surprise at an additional unexpected event or fact.
Strong Surprise:
* Τι; (Ti?): A sharp "What?", expressing disbelief or strong surprise.
* Μα, τι έγινε; (Ma, ti egine?): "But, what happened?" Expresses strong surprise at an unexpected event.
* Θεέ μου! (Thee mou!): "My God!" or "Oh my God!" A strong expression of surprise, shock, or awe. Considered more emphatic than the English equivalent.
* Απίστευτο! (Apisteuto!): "Unbelievable!" A strong expression of disbelief and surprise.
Informal/Regional Variations:
Many more informal and regional variations exist. These are less likely to be found in formal writing but are common in everyday speech.
The best choice depends heavily on the context and the level of formality. Remember that tone and inflection play a crucial role in conveying the exact shade of surprise in Greek, just as they do in any language.