Learn how to use Avoir beau in French my friend (and it has nothing to do with a handsome person!).
avoir beau + infinitif = faire quelque chose avec des efforts mais inutilement, vainement car sans obtenir le résultat voulu
to do something with some effort but in vain, without obtaining the desired result
Il avait beau lui expliquer, elle ne comprenait pas.
No matter how hard he tried to explain it to her, she would not understand.
Nous avons beau lui dire qu’il le mérite, il n’a pas confiance en lui.
No matter how often we tell him that he is worth it, he won’t trust himself.
Vous avez eu beau crier, il n’a pas entendu.
You tried in vain to scream, he did not hear.
Il a beau courir, il ne parviendra pas à faire le marathon cette année.
Run as he might, he will not be able to run the marathon this year.
Elles ont beau faire des efforts, personne ne s’en rend compte.
No matter how hard they try, nobody realizes it.
French With a Smile 