Happen to do

Happen to do es una estructura verbal que significa "dar la casualidad de que" o "por casualidad".

     I happened to be at the airport when the king arrived.

     He happened to give some very useful information.

     They happen to have a very nice Rolls Royce you could hire.

     I happen to know that she's going to leave him.

     She happens to disagree with you.

Esta estructura también es una forma muy educada y bastante común de preguntar o pedir algo.

     You wouldn't happen to know what time it is, would you?

     You wouldn't happen to have a light, would you?

     You wouldn't happen to speak Italian, would you?

     Excuse me; you wouldn't happen to know where the station is, would you?