1. Ronny ___________ have gone to Switzerland, but I'm not totally sure.
2. You ___________ have lied to me! Why didn't you tell me the truth?
3. Helen ___________ to have seen a doctor weeks ago. Why didn't she?
4. They ___________ have seen the play last night as they went to a football match instead.
5. Carl ___________ have been here by now. Maybe he got stuck in traffic.
6. You ___________ have been really excited when you heard you'd won the competition!
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