Gaano

This question calls for a response indicating the extent or degree of some quality. The interrogative pronoun functions almost like an adverb before a modifier, which is always prefixed with KA-.

Pronouns (actor) always come after the question word.

Here are some examples:

Gaano karami ang dala mong mangga?
How many mangoes did you bring?
Marami. (Plenty.)
Kaunti lang. (A few.)
Gaano kadalas ang klase mo sa Tagalog?
How frequent/often is you Tagalog class?
Tatlong beses sa isang linggo.
Three times a week.
Gaano kalaki ang bahay ni Erap?
How large is Erap's house?
Malaking-malaki.
Very large.
Gaano kahaba ang pila sa sine?
How long is the line for the movie?
Hindi masyadong mahaba.
Not very long.
Gaano mo ako kamahal?
How much do you love me?
Mahal na mahal kita.
I love you very much.