What is "she'd've"

Usage examples of "she'd've".

Patty Mary, my sister, works at the food shop today or she'd've come to pay her respects as well.

I guess I kinda panicked, even though I knew that these people have a thing about blood, and I drew back, and well, I knocked the syringe out and I jizzed at the same time, and there was blood and cum everywhere… well, Constance was going crazy now, lapping up everything, sperm, blood, sweat, I could have pissed on her face and she'd've drunk it.

I replied, not unfairly I think, that even the bards who sang our story were wont to call her both the cause of my labor and its reward -- which was but putting prettily (I went on less fairly) that had I by-passed Joppa altogether I'd've spared myself two hard battles (with Cetus and with Phineus's gatecrashers), plus the sustained one of our recent years together, and found me a more congenial princess somewhere else, whereas she'd've been fishfood.

Then she'd agree, cheerfully adding varicosity, slacked breast and vaginal sphincter, striation of buttock and thigh, and loss of hair-sheen to the list of her biological expenses in the childbearing way -- all which she counted as nothing, since for three such princelets she'd've died thrice over.