The...The

We use the...the structures in order to show that a change in a property is followed by a change in another property.

For example, what happens if you earn more money? Well, Yes—you become richer. A better way to convey this massage is using the...the structure:

• The more money you earn, the richer you become.

Form

THE + an adjective in comparative* + the rest of the first clause + THE + an adjective in comparative + the rest of the second clause

* adjectives in comperative: more, less, bigger, smaller, and so on.

More examples:

• The more he eats, the bigger he gets.
• The older she is, the wiser she becomes.
• The more he moved, the more it hurt him.

Note: Remember, after the two "thes" always comes an adjective in comperative!