How to pronounce 有史以來 in Cantonese (2 out of 6):

價錢可能會是有史以來最貴
The price is probably the most expensive ever.

Cantonese Sentence Breakdown

價錢 gaai3 cin2
price
可能 ho2 nang4
(modal verb) can
wui6
a moment (Taiwan pr. for this sense is [huǐ])
metropolitan
gatherings union
to meet
to catch up
si6
is
有史以來 jau5 si2 ji5 loi4
in history
zeoi3
most
the most
-est (superlative suffix)
exceedingly
extreme
gwai3
expensive
noble
your (name), used in a polite expression
precious
costly
valuable
a surname
to esteem highly
to value
to treasure
to honour or love
honorable
honorific
part of a place name
elegant
high class