Comparisons with not , as... as.

Uasd is not as expensive as Pucmm.
Santo Domingo is not as clean as new york.
I can´t run as fast as I used to.
I am as tall as my niece.
Try to learn as much as you can.
I want to finish my studies as soon as possible.
Dominican Republic is not as big as Brazil.
Dominican people are as funny as Cuban people.
Santiago is not as noisy as Santo Domingo.