as or more?

Could I get your thought on the correct way to put:

As the years go by I cry more and more.
The more the years go by, the more I cry.

The later you take the subway, the larger the interval between trains will be./the few(er) trains there will be.

As time goes by, the less you'll want to see her.
As time goes by, you'll want to see her less and less.

Thanks