hello, I need to confirm if I'd've is in fact a contraption and grammactically correct (and spelt with no spaces)
your assistance is appreciated.
It's an contraction of 'I would have', as in,
"If I Knew You Were Comin' I'd've Baked a Cake" is a popular song.
It was written by Al Hoffman, Bob Merrill, and Clem Watts and published in 1950.