This is the 792nd most frequent Persian word.
مشغول
Busy; occupied.
In this sentence, "مشغول" (busy) is used as a predicate adjective to describe the state of the subject being engaged in an activity.
من به مطالعه برای امتحان مشغول هستم.
I am busy studying for the exam.
Here, 'مشغول' (busy) indicates habitual engagement in an activity, and it's part of the phrase depicting continuous action.
او همیشه مشغول کمک به دیگران است.
He is always busy helping others.
This usage employs 'مشغول' (engaged) in its verbal noun form, as part of the expression 'مشغول شدن' (to engage in).