Table of Contents
Week 1 | English Grammar
Week 2 | English Grammar
Week 3 | English Grammar
Week 4| English Grammar
Week 5| English Grammar
Week 6| English Grammar
Week 7| English Grammar
Week 8| English Grammar
Week 9| English Grammar
Week 10| English Grammar
Week 11| English Grammar
Week 12| English Grammar
Week 13| English Grammar
Must is a modal verb.
must + infinitive
Must = When must is used in a sentence it is used to show necessity or obligation to do something. This means that the action needs to be done.
|I Must||I must go to sleep now.|
|We Must||We must wake up early tomorrow.|
|You Must||You must do your homework on time.|
|They Must||They must eat breakfast ever morning.|
|She Must||She must clean her room.|
|He Must||He must see the mess he’s created.|
|It Must||It’s too hot. It must rain soon.|
Must not = Mustn’t = This means that it is necessary not to do something because it is the wrong thing to do.
|I Must not / Mustn’t||I must not scream at my parents.|
|We Must not / Mustn’t||We must not disrespect our parents.|
|You Must not / Mustn’t||You mustn’t go to school without eating breakfast.|
|They Must not / Mustn’t||They mustn’t forget to phone grandma.|
|She Must not / Mustn’t||She must not fight with her brother.|
|He Must not / Mustn’t||He must not touch my things.|
|It Must not / Mustn’t||The weather is lovely. It must not rain.|
For the past we use had to… not must
Example: I had to rush to work because I was late. (not I must rush to work because I was late.)
|The weather was too hot. I was so thirsty so I had to drink an ice cold drink.|
|The car was gone in for repair so we had to walk home from school.|
|The buses were not running so I had to get a lift home with my neighbour.|
|I had to do my homework in school because I forgot to do it last night.|
|She had to take her medication at lunchtime.|
Don’t need to
When we say I don’t need to something it means that it is not necessary to do it.
|I don’t need to do my homework.|
|I don’t need to buy a new bag for school.|
|We don’t need to go home now.|
|You don’t need to shout at me.|
|They don’t need to help me cook dinner.|
|You don’t need to take your brother swimming.|
|I don’t need to cook dinner tonight because we are ordering food.|
You can also say I don’t have to instead of I don’t need to (to show that it is not necessary to do the action)
|I don’t have to go home right now.|
|I don’t have to sleep early tonight.|
|I don’t have to help my mum in the kitchen.|
|We don’t have to bake a cake for dad’s birthday.|
|They don’t have to drive themselves to the airport.|
Compare don’t need to and mustn’t
- You don’t need to go.
- You mustn’t go.
- You don’t need to complain about everything.
- You mustn’t complain about everything.
- You don’t need to scream at mum.
- You mustn’t scream at mum
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Mustn’t is the contraction of
2. Name 5 infinitive verbs and create sentences using each infinitive in each sentence.
3. Fill in the missing gaps with must or must not where appropriate.
- I listen to my parents.
- I disrespect your elders.
- I eat breakfast every morning.
- I listen to my teacher.
- I do my homework.
- I get into fights with people.
- I shout out in class.
- I work hard.
- I leave the house without cleaning my bedroom.
4. Complete the sentences
- I don’t need to
- I don’t need to
- I don’t have to
- I don’t have to
- I had to
- I had toI don’t have to
Challenge: Create 3 comparisons of don’t need to and mustn’t.
You don’t need to go
You mustn’t go.