What is How've?
1.
A contraction of "How have"
It's not actually proper grammar but whatever.
If I have to explain how to use this word, you're an idiot. Here it goes anyways:
(Person A) "How've you been?"
(Person B) "Did you just contract "How" and "Have" together!
Grammersphemy !
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Random Words:
1.
of great probability, very much probable
Often used alone as in 'Probalicious! You're not gonna realize it before you fall in..