Not so much slang as, well, that's what you actually SAY, not what you write.
FORMAL -- Informal-- Colloquial
could have -- could've -- "could of" or "could a"
''We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat
them unconscious and rifle their pockets for new vocabulary.''
-- James Nicoll
FORMAL -- Informal-- Colloquial
could have -- could've -- "could of" or "could a"
''We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat
them unconscious and rifle their pockets for new vocabulary.''
-- James Nicoll