'My mother's father is my....' (maternal grandfather, to complete the sentence)
El tiempo es padre de todo = time is father of all
I am the father of my sister. which is impossible, of course.
El abuelo o el abuelastro es el esposo de mi abuela. Mi abuela es la madre de mi madre o de mi padre. El abuelo es el padre de mi madre o de mi padre y el abuelastro, como el segundo o ultimo esposo de mi abuela, no lo es.
El padre de Marco Antonio Regil se llama Guillermo Regil. Marco Antonio Regil es un reconocido presentador de televisión y conductor de programas de entretenimiento.
Hippocrates
'My mother's father is my....' (maternal grandfather, to complete the sentence)
Mi abuelo
Depending on your context, name of the fathers or parents' names
The father of my mother is my...The answer is grandfather; in Spanish, abuelo.
Your uncle´s father is your...
"Cuando es el cumpleaños de tu madre o padre" translates to "When is your mother's or father's birthday?" in English. It is a question asking for the date of birth of either the mother or the father. This question is often used in conversations to gather information about someone's family.
Puede usted/pudes ser mi papa (formal/informal)