(Can-could) (must-have to)

Modal verbs Can Express 1- ability ★I can play the guitar. ★I can lift heavy objects. ★I can swim for hours. 2- possiblity ★Driving recklessly can cause accidents ★you can skip school when you're I'll 3- permission Can you help me? Can I help you? 4- suggestions ★If you like chocolate we can buy a chocolate cake. ★I can come to your audition if you want ~Can is always in the infinitive form You can never say canned ,canning, can to or cans ❎ ★ you can add not after for it to be a negative sentence *I cannot* or the contracted form *I can't* It would indicate that something is not possible or inability. You can't come with me. You can't gain weight when you eat salad. Question form Can is used on its own without do or does Can you play tennis? Can you come with me? Could It is the past of can It is used when there was a possibility or impossibility in the past ability or inability. Practice 1- I (can - can't - could - couldn't) choose,I like them both 2- I (can - can't - could - couldn't) decide what to do. you choose! 3- I'll see what I (can - can't -could - couldn't) do to help. 4- He was the only one who (can - can't - could - couldn't) help me. 5- As far as I (can - can't - could - couldn't) see there's nothing wrong with you. 6- It was so noisy that we (can - can't - could - couldn't) hear anything. 7-Nobody is here ,I (can not - can't) understand it. 8- I (can - can't - could) After what she did. 9- ( There was no hope , we (can - can't - could - couldn't) Rescue her. 10- He (can - cannot - could - can not) his leg is broken. 11- milla (can - can't - could - couldn't) be tired I've just seen her. 12- She (can - can't - could - couldn't) solve the problem, she is smart. 13- (can - can't - couldn't) I use your bike, please? 14- sorry I (can - can't - could - couldn't) attend the party. Which sentence is correct ★ I can only seeing you for 20 minutes. ★we can to eat burgers if you like ★ The mornings can be quite hot here. Which sentence is correct ★ Can you take this bag while I get my key? ★ Do you can take my bag while I get my key?★ Can you to take my bag while I get my key? Which sentence is incorrect ★I can not believe the price of the rugs! ★I can't believe the price of the rugs. ★I cannot believe the price of the rugs!

Some key words ★(Must is similar to have to) you use must with situations that if you decided not to do it'll have a negative affect on your life. And you usually choose them when it's a general rule or law rules. ★Must not is used with 1- it's prohibited 2- not permitted 3- not allowed 4- it's against the rule. 5- an opinion that affects your life or health. 1- He (must have be - must have been - must have to be) fired after stealing from his employer. 2-You ( must not - don't have) use a phone during the exam , it's against the rules 3- We ( must have - must have been - must have be). 4- Larry's maths scores are high. He (must have studied - mustn't have studied - must has studied) 5- I can't find my phone. I (must left - must had left - must have left ) it at home. 6-it is the weekend, so I (mustn't _ don't have to ) get up early. 7- You (mustn't - don't have to) rush, we've got plenty of time. 8- That ( can't - mustn't) be Sophia . She's in Boston. 9- You (mustn't - don't have to) smoke anywhere in this theatre. Smoking is not permitted. 10- You ( have to - mustn't) follow the rules.