而家我係新宿
I'm in Shinjuku now.

Cantonese Sentence Breakdown

而家 ji4 gaa1
(adverb) right now; now; this moment
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
新宿 san1 suk1
Shinjuku