This is the 331st most frequent Czech word.
museli
"Museli" means "had to" or "were obliged to" in English.
The word 'museli' is the plural past tense of 'muset', indicating a necessity or obligation that occurred in the past.
Museli jsme dokončit práci před termínem.
We had to finish the work before the deadline.
Here, 'museli' reflects a past necessity, influenced by the weather.
Protože pršelo, museli si vzít deštníky.
Because it was raining, they had to take umbrellas.
In this sentence, 'museli' is part of a question, inquiring about a past necessity or obligation.