我係瘋子愷
I'm a madman.

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
瘋子 fung1 zi2
crazy person
愷 hoi2
joyful
kind
amiable