For something (patient ma-) to be four unit measures of length, quantity, size, time, value, or weight.
Expanded into a phrase by suffixing a number ligature di2, followed by a measure noun.
Na'apat di tawon di nihina' ad Manila.
The years that I stayed in Manila were four.
It can also be expanded by a number ligature di2 followed by an object used as the payment of something.
Ma'apat di manu' di ngīnan di hanggap'u.
The price of my bolo will be four chickens.
Unspecified, a time period is understood to be days, a value to be pesos, a quantity to be pieces.
Ma'apat di pangana' hinan duway kīlun bogah.
The time that I can eat two kilos of pounded rice is four [days].