This is the 786th most frequent Spanish word.
suelen
"Usually" or "tend to."
In this sentence, 'suelen' is used to indicate a habitual action or tendency.
Ellos suelen tomar café por la mañana.
They usually have coffee in the morning.
In this context, 'solemos', the first-person plural form of 'suelen', indicates a frequent activity performed by the speaker and their group.
Los fines de semana, solemos salir a caminar.
On weekends, we usually go for a walk.
Here, 'suelen' reflects a common practice or routine behavior of the students.