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

我不知道可以到多久
I don't know how long I can do this.

Cantonese Sentence Breakdown

ngo5
I
me
my
us
we
our
self
不知道 bat1 zi1 dou6
not knowing
可以 ho2 ji5
(adjective) so so
ji4
border
horizon
shore
riverbank
water's edge
boundary
dou3
to (a place)
until (a time)
up to
to go
to arrive
(verb complement denoting completion or result of an action)
been to
a particle used after a verb or adjective to indicate degree
extent
多久 do1 gau2
how long