as many as

Tantos/as + sustantivo plural contable + como.

No tengo tantos hijos como Paco.	I don't have as many children as Paco.
No hablo tantos idiomas como Silvia.	I don't speak as many languages as Silvia.
Tengo tantos problemas como Paula.	I have as many problems as Paula.
Te puedo dar todas las clases que necesites.	I can give you as many classes as you need.
En mi empresa hay tantas mujeres como hombres.	In my company, there are as many women as men.

También utilizamos esta estructura para decir "el doble de"... Siempre con sustantivos contables en plural.

He ido al doble de países que mi primo.	I have been to twice as many countries as my cousin.
Londres tiene el doble de habitantes que Madrid.	London has twice as many inhabitants as Madrid.
He comprado el doble de libros este año que el año pasado.	I've bought twice as many books this year as last year.
En Inglaterra hay tres veces más no fumadores que fumadores.	In England, there are three times as many non-smokers as smokers.
Ella tiene tantos como yo.	She has as many as I do.