Someone (mag-, mang-) pays for something (-an).
paga
Yaken mangbāyad so ōtang mo.
I am the one to pay for your debt.
Papiraw bayādan na?
How much does he pay for it?
Something (ma--an) is paid for.
Nabayādan nawri.
That was paid for.
pagbayādan
The person to whom payment is made.
Yaken danaw pagbayādan na.
I am (the one) he paid.