Quoting bod:

Most examples of the potential mood suffix that I have seen are used with the simple past tense or with the aorist tense. Can the potential mood suffix also be used with the present continuous tense?

Are both of these correct and what is the difference in meaning?

Biraz daha zeytin alabılır mıyım lütfen?
Biraz daha zeytin alabılıyor muyum lütfen?

Quoting mltm:

You could make a question with the present con. in a case like this:
You're washing the dishes, and ask your mum if you're doing it well.
- Bulaşıkları güzel yıkayabiliyor muyum?