Utilizar estructuras PROPIAS de la lengua extranjera: To use structures ... of the foreign language.
 
Escribir frases TANTO en soporte papel COMO digital: To write sentences ... in paper ... digital format.
 
Use exact (sentence) structures in a foreign language.
 
Write phrases (sentences) so that they can support both paper and electronic forms.
 
I think that is what you are meaning.  It �s hard to just translate sentences without knowing what they are used for.
 
If you are writing objectives these are how mine would look.  In Spanish, I would write the objectives like this:
 
Utilize las formas apropiadas de estructuras de oraciones de la idioma extranjera.
 
Escribe oraciones que puede utilizar formas de comunicacion del papel y electronico.
 
PROPIAS = exact     TANTO = so  COMO = as or like
 
But I use "Mexican Spanish" so words might have a different meanings than what is used in "Castellano".