Hello Maxpancho, *You'd better is a contraction of " you had better" and it is an idiomatic phrase meaning " ought, should or must do something". You had better hurry up if you want to catch the plane. It can't be the 2nd verb in a phrase. You can't say for example: You will had better...... When speaking most people leave out "had" and say " you better .... You better hurry up if you want to catch the plane.