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there was a party last night that I left early, the next morning, can I ask:

1. What time was the party over?

2. What time did the party?

3. Until what time you guys were there?

Which one is most correct??

Thanks!
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1. What time was the party over? -- fine

2. What time did the party end?

3. What time did you guys leave (the party)?
How late did you guys stay (at the party)? [Emotion: party]
Comments  
3. ?? Until what time you guys were there?

3a. Until what time WERE you guys there?

3b. What time were you guys there till?

3c. What time were you guys there until?