A lot has happened since 1980.
England hasn't won the World Cup since 1966.
It was the hottest October since we began keeping records.
He's been much happier since he started his new job.
I've known Tim since he was seven.
I was really surprised when I read the e-mail because I haven't heard from you since I visited you last year. (Preliminary English Test; B1; Romansch)
Since we've got a few minutes to wait for the train, let's have a cup of coffee.
Since my mother has surgery tomorrow, I will not [be able to] come to your class. (Preliminary English Test; B1; Farsi)
Emma went to work in New York a year ago, and we haven't seen her since.
He started working for the company after graduation and has been there ever since.
I've long since forgotten any Latin I ever knew.
It was my grandmother who introduced me to teddy bears and she wanted me to love them as she did. When she died, I got all her bears and have been taking care of them ever since. (First Certificate in English; B2; Danish)