Looking on the internet deeply has found these results:

My father is a sergeant is the most popular phrase on the web.

my mother is a sergeant 11 results on the web	My father is a sergeant 132,600 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Maybe my mother is in town. My mother isn't receiving today. And my mother is very kind. Leave our mothers alone, Sergeant. But my mother is not a Catholic. My mother is Broadway legend Patti Lupone. Did the mother know Sergeant Johnson? No. My mother is driving me crazy.	Yes, your father was a sergeant. My father is going to walk me down the aisle. A sergeant comes up to me with a machine gun, puts it to my head, and says, "Tell me where your father is or I will kill you." Exactly, my father is sick. Don't call me "Father," Master Sergeant. Because her father, Sergeant Macken, was there on duty, and he saw his daughter, saw her in the heat of battle. My father is the senior military officer. My father's dead, Sergeant.

my mother is a sergeant

11 results on the web

My father is a sergeant

132,600 results on the web

More popular!

Yes, your father was a sergeant.
My father is going to walk me down the aisle.
A sergeant comes up to me with a machine gun, puts it to my head, and says, "Tell me where your father is or I will kill you."
Exactly, my father is sick.
Don't call me "Father," Master Sergeant.
Because her father, Sergeant Macken, was there on duty, and he saw his daughter, saw her in the heat of battle.
My father is the senior military officer.
My father's dead, Sergeant.