tan

No sabía que eras tan alto.

I did not know you were so tall.

Es tan difícil como parece.

It is as difficult as it looks.

¿Por qué llegaste tan tarde anoche?

Why did you arrive so late last night?

Estaba tan cansado que se durmió en el sofá.

He was so tired that he fell asleep on the sofa.

Nunca había probado una sopa tan rica.

I had never tried such a tasty soup.