When do we use must

Meaning 3: We use MUST to emphasise that we think it is a good idea for someone to do something pleasant. It is a way of giving a recommendation. You must come and visit us while you are in London!

We must go and see that film — I have heard it is excellent! Meaning 4: We use MUST to make an assumption or to reach a logical conclusion about something that is very likely to be true. You must be so tired after running that marathon! My bicycle has disappeared — someone must have stolen it.

You must have been so cold when you were locked out of your house in the snow! Example: If you are visiting London, a good map is a must. Now, try to write your own sentences using MUST, making sure that they are true to your own life as this will help you to remember them better! If you like this lesson, please share it. Thank you :. DailyStep English Audio Lessons are designed to help you learn to speak and understand English at the speed that we speak it.

No matter how good your English is, you need to be able to follow a fast conversation in order to participate. DailyStep English courses are fully accredited and you can get an internationally recognised certificate for your CV or resume.

Please listen to current DailyStep lesson topics here:. If you are ready to start daily lessons, you can start your lessons here. I'm Jane at DailyStep English. Are you new here? No need to enter any details apart from your name and email address. Mustn't Do—Prohibition The negative form of "must" expresses the idea that something is prohibited—this form is very different in meaning than the negative of "have to"! She mustn't use such horrible language. You mustn't play with fire.

You mustn't drive more than 25 mph in this zone. The children mustn't go into the street. Did he have to leave so early? He had to stay overnight in Dallas. She had to pick the children up from school. Did they have to do the work over again? Need to Do—Important for Someone Use "need to" to express that something is important for you to do.

She needs to go to Seattle next week. Do you need to get up early tomorrow? I need to spend more time with my children because I've been so busy lately. We need to focus on getting new business this month. Don't Need to Do—Not Necessary, but Possible Use the negative form of "need to" to express that something isn't necessary, but possible. You don't need to come to the meeting next week. She doesn't need to worry about her grades. She's a great student. I don't need to work next Monday!

Peter doesn't need to worry about money because he's independently wealthy. Correct Wrong. The grass is getting too long. How to Use the Preposition 'To'. Uses for the Preposition "At". Don't Confuse the Hyphen With the Dash. Your Privacy Rights. To change or withdraw your consent choices for ThoughtCo. What do you think? Do I have to wear this tie?

Is there a rule about ties? I have to brush my teeth twice a day. Important: To express obligation, duty or necessity in the future or the past, must and need are not used. They are replaced by have to :. We must need to buy another ticket. We had to buy another ticket yesterday. We'll have to buy another ticket later. You mustn't drive.