Can A Person Suffered From Stroke Recover And After Much

can a person suffered from stroke recover and after much time? The stroke was due to blood clot in the blood vessel supplying blood to the brain. It is more than 14 days since she lost consciousness and not responding to anything. she opened her eyes very little bit equal to nothing whenever someone asks her to do so. she is on oxygen although doctors are saying she is breathing little bit on her own. doctors are saying her brain is dead and she can't gain consciousness again in life.