How do you say i was dying in french?

The French phrase for "I was dying" is, "Je mourrais." "Je" is pronounced "zheuh", where "zh" would make the "s" sound in "pleasure" and "euh" would be a lot like the "u" sound in "put."

"Mourrais" is pronounced "moo-ray," except that you must leave off the "y" sound at the end. The sound is about halfway between the long "a" of "cape" and the short "e" in "bet." And, of course, the "r" is a traditional French (velar) "r," formed as the back of the tongue nearly touches the soft palate and causes a soft vibration as air passes through that gap.

So there you have it, from the "Far More Information Than You Wanted" department.