Hi
How to say it correctly?
1) Do you want to see me now?
2) Did you want to see me now?
3) I wonder if you are free this afternoon.
4) I wondered if you are free this afternoon.
5) Do you like it?
6) Did you like it?
#4 is more likely to be said as "I wondered if you were free this afternoon", though your version may be heard. Depending on the context, all are possible.
Context is always important; labelling is rarely important.