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Past Regrets & Guesses 🤷
Modals + Have + V3.
- Should Have: Regret / Advice for past.
- "I should have studied." (I didn't, mistake).
- Could Have: Past possibility that didn't happen.
- "I could have won, but I fell."
- Must Have: Past deduction (99% sure).
- "My keys are gone. I must have dropped them."
- Can't Have: Past impossibility.
- "He can't have stolen it. He was with me."