Would’ve is a single word with an apostrophe.
The contraction for “would have” is “would’ve.” In this situation, “would” is followed by the present perfect (“have” plus the past participle).
Because the “ ‘ve” may sound like “of,” a common mistake is to use “of” after “would.” That should be avoided, but it is sometimes used in dialogue as slang or uneducated speech.
In a negative sentence, this contraction follows the “n’t” with its own apostrophe, making a double contraction with two apostrophes, “wouldn’t’ve.”
Wictionary offers an interesting list of double contractions, with some at the beginning of the word.
- Coy would have bought a new car if he had seen this ad.
- Coy would’ve bought a new car if he’d seen this ad.
- (two contractions: would have = would’ve, he had = he’d)
- This Impala would have been perfect for him because it only has 25,000 miles.
- This Impala would’ve been perfect for him because it only has 25,000 miles.
- (would’ve = contraction of would have)
- He would not have had to pay a big repair bill on his current car.
- He wouldn’t’ve had to pay a big repair bill on his current car.
- (Double contraction: “would” + “n’t” + “ ‘ve” with two apostrophes)