Formal:
* Maawatanmo kadi? (This is the most literal translation and is appropriate for formal settings.)
* Naawatanmo kadi? (This is a more polite way of asking the same question.)
Informal:
* Maawatanmo?
* Naawatanmo?
* Intindimo? (This is a more colloquial way of asking.)
For emphasis:
* Talaga kadi a maawatanmo? (Do you really understand?)
* Sigurado kadi a maawatanmo? (Are you sure you understand?)
The best translation depends on the specific situation and your relationship with the person you are talking to.