我能不能明天晚上7点请您吃饭?
Could/May I invite you for dinner tomorrow at 7 p.m.?
When you want to ask about the possibility to do something, you can use the affirmative-negative question formed by putting together the affirmative and negative forms of an auxiliary verb 能. The sentence pattern is “subject + 能不能 + V”.
| subject | 能不能 | + V/VP |
|---|---|---|
| 我 | 能不能 | 明天晚上7点请您吃饭? |
| I | can or cannot | tomorrow evening at 7:00 o'clock invite you for dinner? |
| 我 | 能不能 | 明天跟他见面？ |
| I | can or cannot | tomorrow meet him? |
| 您 | 能不能 | 告诉我他的手机号码？ |
| You | can or cannot | tell me his mobile number? |