Matching Pairs Modal Verbs of DeductionOnline version Modal Verbs of Deduction Pairs by Mariela Paola Miranda 1 The phone is ringing. It ________ be Charlotte; she said she would call this morning. 2 If Suzan said that, it ______ true. She never lies. 3 He ______ be very proud of you right now. You disappointed him. 4 He ______ his son, they look completely different. 5 I think there ______ a mistake in your tax return. You should check it. 6 He ______ be at the gym right now. Sometimes he goes there at this time. 7 I'm not sure I trust Peter. He ______ the person we think he is. 8 He _________ be in class. I saw him at the library a minute ago. 9 There's a bit of traffic, so I ______ arrive in time. can't be might not / may not might can't might not be can't must be might be / may be must