faresti meglio ad

you'd better

→ fare
phrase Rare #37,591
you'd better Used to give advice or a warning. It is followed by an infinitive; the preposition ad is used before an infinitive beginning with a vowel, as in aiutare, arrenderti, ascoltare, aspettare, and evitare.
IT: Faresti meglio ad arrivare in orario.
EN: You'd better arrive on time.

Faresti meglio ad aiutare tua madre.

You'd better help your mother.

— Il fratello grande (2000)

Faresti meglio ad ascoltare.

You'd better listen.

Faresti meglio ad evitare Tom.

You'd better avoid Tom.

Faresti meglio ad arrenderti per oggi.

You’d better give up for today.

— Il castello errante di Howl (2004)

Faresti meglio ad aspettare il prossimo autobus.

You’d better wait for the next bus.