1 Look at these sentences and complete the rules bellow with the modal verbs. a) A cyber-criminal might steal or destroy tour money. b) It must be easy to become a millionaire if you can make your own money! c) This may or may not be true. d) Bitcoins might not be such a good idea. e) It can´t be long before physical money disappears. f) It could take years to get just one Bitcoin. 1. We use ….., ….. And ….. When there is a 50% possibility that something is or will be true. The negative forms are ……. And …… . We cannot use the negative form of ……. When there is a 50% possibility that something isn´t true. 2. We use …… when we are 90% certain that something is true. 3. We use …... When we are 90% certain that something isn´t true. 4. When we are speculating and making deductions, the opposite of must is …… .