tu madre se sentiría orgullosa
You can say, "Your mother must be very proud of you." This expresses admiration for someone's achievements and suggests that their mother would feel a sense of pride in them. It conveys warmth and appreciation for the person's efforts and successes.
Mamá está resfriado.
Estoy orgulloso de que eres mi hijo is the best way to say "I am proud you are my son" in Spanish.
You would say "Mi madre se llama Lisa".
La tía de ella está orgullosa.
Yo soy la hija de mi madre
In Spanish, you say mother as "madre" and son as "hijo."
Madre
Tu madre.
su madre
mi madre
Argentina's official language is spanish so mother in spanish is madre or mama