Modals of deduction Modal Must Uses something is true; based on strong evidence Could, May, Might something is possible, but we are not sure example You are all wet It must the raining outside • • • Can’t something is not true, for sure Don’t put the book on the window It could fall We will try to get there on time, but we may arrive late if there is a lot of traffic Did you hear that? I think there might be someone at the door followed by infinitive, without “to” He works on Christmas He can’t be happy about that Complete the following sentences with CAN'T, MUST, MIGHT a) I can hear some music coming from that window He be at home b) Mark told me Sarah was working late today, so she _ be home right now c) Harry doesn't answer the phone He _ be in the movies d) Ring! Ring! That _ be mom; she said she'd call me back in a minute e) I _ have left my keys in the car or maybe at John's f) Sue is late for class She _have missed the bus g) That DVD _ cost more that 15€; it's an old movie! h) Christina has already been three times to that new pizza restaurant It _ be really i) j) k) l) m) n) o) p) q) r) s) good Robert always gets straight A's His parents _ be really proud of him Her new boyfriend is absolutely gorgeous He _ be a model A: What's that deafening noise out there? B: My downstairs neighbors _ be having another barbecue It's the fifth one this month! A: Have you called Sam? B: yeah, but he _ have already left, because nobody answered the phone A How much further we have to go? B: Not much Her house _ be very far from here Lisa failed her driving test, so she _ be in a good mood right now George wasn't promoted as he had expected, so he _ be totally disappointed with himself He and his sister _ come with us if their parents give them permission