我係叫你快啲講清楚
I asked you to explain things clearly quickly,

Cantonese Sentence Breakdown

我 ngo5
I
me
my
us
we
our
self
係 hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
叫 giu3
to shout
to call
to order
to ask
to be called
by (indicates agent in the passive mood)
to cry
to hail
to greet
to cause
你 nei5
you (informal, as opposed to courteous 您nín [您])
can be used to refer to an unspecified person
快 faai3
fast
啲 dit1
only a little bit
講 gong2
(verb) to tell
清楚 ceng1 co2
clear