How to pronounce 發神經 in Cantonese (2 out of 4):

啲fd都以為你發神經
The FBI thought you had a nervous breakdown.

Cantonese Sentence Breakdown

dit1
only a little bit
dou1
all
both
entirely
(used for emphasis) even
already
(not) at all
metropolis
capital
big city
the whole
elegant
refined
without exception
also
too
still
used in a sentence to add an inference or interrogative tone
以為 yi5 wai2
thought
nei5
you (informal, as opposed to courteous 您nín [您])
can be used to refer to an unspecified person
發神經 faat3 san4 ging1
to go crazy