Mapun - mustahil

mustahil

Impossible; absurd; preposterous.

Mustahil ko kapilay pa Stet ya' san luu sukay nu.

That's absurd for you to be able to go to the States when you don't even have any fare.

mag-

To say s.t. that is preposterous.

Daa ko magmustahil.

Don't say preposterous things.