be free; be available
干嘛问我明天晚上有没有空?
Why are you asking if I'm free tomorrow night?
— 重庆森林 (1994)
你周二有没有空?
Are you free on Tuesday?
我想问你明天有没有空带他们出去?
I wanted to ask if you’re free tomorrow to take them out.
— 东京物语 (1953)
明天晚上有没有空?
Are you free tomorrow evening?
你现在有没有空?
Are you free right now?
— A Sun (2019)