This is the 3368th most frequent Swedish word.
arrangerats
"Arrangerats" means "has been arranged" in English.
In this sentence, 'arrangerats' is presented in a general passive form to express that the event is scheduled annually by some organizing body.
Evenemanget arrangerats varje år på samma datum.
The event is arranged every year on the same date.
This usage illustrates 'arrangerats' in the past perfect passive, showing that the competition was successfully organized after considerable debate.
Efter många diskussioner hade tävlingen till sist arrangerats.
After many discussions, the competition had finally been arranged.
Here, 'arrangerats' is used in the past perfect passive form to indicate the concert was organized by someone (the music association).