This is the 2917th most frequent Polish word.
musiały
"Musiał" means "had to" and is used to express necessity or obligation of "haveing to" do something
'Musiały' is used to express a necessity in the past tense for a feminine plural subject.
Dziewczyny musiały iść na zakupy po pracy.
The girls had to go shopping after work.
'Musiały' describes a past obligation for a feminine plural subject.
Aby zdać egzamin, studentki musiały się dużo uczyć.
To pass the exam, the female students had to study a lot.
'Musiały' conveys a past necessity for a group of women.