This is the 29th most frequent Malay word.
sebelum
"Before."
'Sebelum' is used as a conjunction to indicate the action of having breakfast occurs prior to going to school.
Saya makan pagi sebelum pergi ke sekolah.
I have breakfast before going to school.
'Sebelum' is used to describe arriving at a time prior to eight o'clock, showing its usage as a preposition.
Sila datang sebelum pukul lapan.
Please arrive before eight o'clock.
Here, 'sebelum' introduces the timing of the action in relation to the exam, acting as a temporal marker.