The faster...the earlier
That's a kind of construction I don't understand jet.
For example:
-The faster you drive the earlier you get there.
- The more you study the better your English ( is)
- the more the friends ( you have ) the better.

Some time you insert the verb in the first and second part of the frase but other times you don't.
Really I can't understand .
Could you help me ?

Question

The faster...the earlier
That's a kind of construction I don't understand jet. 
For example:
-The faster you drive the earlier you get there.
- The more you study the better your English ( is) 
- the more the friends ( you have ) the better.
 
Some time you insert the verb in the first and second part of the frase but other times you don't.  
Really I can't understand .
Could you help  me ?

Answer

Hello Andrea,

The structure is the + comparative ......... the + comparative - there is an explanation here

https://www.englishgrammar.org/thethe-comparative-adjectives/

Hope this helps

Bob