must modal verb drawing conclusions exercises

The negative form is can't in spoken English and cannot in written English. We make questions by putting the subject after can/ could: Can I. We use could you … as a polite way of telling or asking someone to do something: We use can't to refuse permission or say that someone does not have permission: We use can to say that someone has permission to do something: We use can to ask for permission to do something:Ĭould is more formal and polite than can: She could have learned Swahili, but she didn't want to. We use could have to say that someone had the ability or opportunity to do something, but did not do it: We use could and couldn't to talk about the past: We use can and can't to talk about the ability to do something at a specific time in the present or future: We use can and can't to talk about someone's skill or general abilities: If Jones was at work until six, he couldn't have done the murder. We use can't have or couldn't have to say that a past event was impossible: (= It was sometimes very cold there in winter.) We use could to make general statements about the past: Where are they? They could have got lost. We use could have to make guesses about the past: We use can't or cannot to say that something is impossible: (= It is sometimes very cold here in winter.) We use can to make general statements about what is possible: We use could to show that something is possible, but not certain: If you help me with this, I promise from now on I will be more careful and take them with me.įinally, I think you should set some cameras to know who is breaking into the school and taking things from the lockers.Level: beginner Possibility and impossibility If I can’t find my things my parents may ground me so I hope you could do your best to find out who did this and to get my things back. I can tell my parents to come to talk to you if you don’t believe what I’m saying. This morning when I open my locker and looked inside I realized my things were gone. I must have taken it home but I was going to use it in my Art class. Apart from that, I left my Ipad under my books and calculator. Yesterday, after my Maths class, I left my calculator on my books, right next to my binder. I always make sure is locked as I keep in there my school objects as my calculator, my books, my projects and sometimes my tablet. Yesterday afternoon when I left school I locked my locker.

Must modal verb drawing conclusions exercises