Looking on the internet deeply has found these results:

My father is retired is the most popular phrase on the web.

My father has retired 114,400 results on the web	My father is retired 146,200 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Your father retired three years ago. My father's a retired Chief Petty Officer. After becoming a rich man, my father retired from business and settled down in this town. Ever since your father retired, he has a million different hobbies and Parents have been going to Florida every winter since the father retired. My father retired from the air force two years ago. My father retired later than usual tonight. and interests.	Lance Corporal Dunn's father is a retired marine. Parents have been going to Florida every winter since the father retired. After becoming a rich man, my father retired from business and settled down in this town. My father is now retired, and a number of the heavy metals by which he was affected are now banned. My father's a retired Chief Petty Officer. My father retired later than usual tonight. My father retired from the air force two years ago. His father is retired sas, mother is a behavioral therapist.

My father has retired

114,400 results on the web

My father is retired

146,200 results on the web

More popular!

Your father retired three years ago.
My father's a retired Chief Petty Officer.
After becoming a rich man, my father retired from business and settled down in this town.
Ever since your father retired, he has a million different hobbies and
Parents have been going to Florida every winter since the father retired.
My father retired from the air force two years ago.
My father retired later than usual tonight.
and interests.

Lance Corporal Dunn's father is a retired marine.
Parents have been going to Florida every winter since the father retired.
After becoming a rich man, my father retired from business and settled down in this town.
My father is now retired, and a number of the heavy metals by which he was affected are now banned.
My father's a retired Chief Petty Officer.
My father retired later than usual tonight.
My father retired from the air force two years ago.
His father is retired sas, mother is a behavioral therapist.