I don't speak speak Spanish at all.puedo utilizar el do con it.... o decir por ejemplo: it dont matter!... ? yo tengo entendido que es it doesnt matter! pero no se...
y otra duda... como se dice ayer fue tu cumpleaņos?:
- yesterday was your birthday o
- yesterday were your birthday??
The only thing I get from your text is
"It don't matter" "It doesn't matter"
I don't matter is mainly used by Americans, which means It doesn't matter.
The correct way of saying it is "doesn't" and not "don't". But forget about slang.....
And about the other sentence: I'd say it's "It was your birthday yesterday"