How to pronounce 低分 in Cantonese (3 out of 4):

根本就冇諗過自己會低分
I never thought I'd score lower.

Cantonese Sentence Breakdown

根本 gan1 bun2
essentially
就冇 zyau6 mou5
don't have
諗過 lam2 gwo3
thought over
自己 zi6 gei3
myself
wui6
a moment (Taiwan pr. for this sense is [huǐ])
metropolitan
gatherings union
to meet
to catch up
低分 dai1 fan1
low score