Importante. Eem-por-TAN-tay
If by 'big grammar' you are referring to important grammatical concepts, you could say: 'Esto es un concepto gramatical importante.'
Grammar is always important, whatever you write or say.
perdonen mi gramática
You say, escuela primaria, or just primaria. They'll know you're talking about a school.
This means "Our team always wins when we share". It seems to be proper grammar.
you say ' no es importante".
As a foreign proper noun, there is no consistent grammar across the Spanish world to deal with this. You will likely find that some people will say "los iPades" and others will say "los iPad".
Yes, the Oxford comma is used in Spanish grammar to separate items in a list.
In Spanish we say "Gramática" or "Normas Gramaticales". Both are fine. You pronounce "gramatica" grah-mah-te-kah.
no es importante
A. M. Soteldo has written: 'Spanish grammar' -- subject(s): Grammar, Spanish language
You should have asked Is grammar important when you 'ARE' free writing?Yes, grammar is always important!