How to pronounce“must’ve”in English

He must’ve had one heck of a college essay, because somehow, he got into UC Berkeley, graduated with a degree in bacteriology,

So something must’ve changed. Haitians in 2010 relied on water from the Artibonite River in part because there were few places with treated water,

So horseshoe crabs must’ve split off from the chelicerate family tree beforehand, putting them in their own, very ancient, order, Xiphosura.

But... it must’ve been good.

There must have been a time when nothing was in motion, Aquinas thought, and there also must’ve been a static being that started the motion.