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Must / Mustn't: Rules and Obligations
We use must to talk about rules and things that are necessary or obligatory.
We use mustn't (must not) to talk about things that are prohibited.
Structure
Must + verb (base form)
Ejemplo
School rules:
You must wear a uniform. (obligation)
You must do your homework. (obligation)
You mustn't run in the corridors. (prohibition)
You mustn't use your phone in class. (prohibition)
Recuerda
Must = it is necessary, you have to do it.
Mustn't = it is prohibited, you cannot do it.
Must is the same for all persons: I must, you must, she must, we must, they must.
Rules in different places
Ejemplo
At the swimming pool:
You must shower before swimming.
You mustn't run near the pool.
You must follow the lifeguard's instructions.
You mustn't eat in the water.
Ejercicios- Complete with must or mustn't: You ___ be quiet in the library.
- Complete: You ___ feed the animals at the zoo.
- Write 3 rules for your classroom using must.
- Write 3 things you mustn't do at home.
- Write 5 rules for a park using must and mustn't.
✏️ Actividad de repasoRepasa los conceptos principales de esta lección. Intenta explicar con tus propias palabras lo que has aprendido sobre Rules and Obligations.
- Lee de nuevo las secciones que no hayas entendido bien.
- Escribe un resumen de 3-5 líneas con las ideas principales.
- Si hay ejercicios, intenta resolverlos sin mirar las soluciones.