Can / could you close the door?
You can use the toilet if you need to.
- May I use your computer? - Yes, you may.
You needn't give me back my camera until I go on holiday next month.
We need to buy some batteries for our camera.
You musn't make a noise during the exam.
I am not able to drive a lorry, only a car.
I was abroad on holiday at the time of the general election but I was able to vote by post.
Pamela isn't at home and I know she works a lot. She must be at work.
Marty can play the guitar better than anyone I know.
My father can't drive but my grandmother can.
Shall I carry your bags?
Bob ought to be more careful when he is driving: he is a real danger to pedestrians.
You must train very hard if you want to be a successful athlete
She was a gifted child and could read when she was only three years old.
Can I help you?
He could be at a friend's house.
She used to play with me in the playground when we were at school.
uso: pedir a otra persona que haga algo
uso: expresar hábitos y rutinas en el pasado
uso: recomendaciones, sugerencias, consejos, opiniones
uso: posibilidad/ incertidumbre
uso: deducciones
uso: ausencia de obligación o necesidad
uso: necesidad
uso: habilidad, capacidad y conocimiento (pasado)
uso: permiso (pedir permiso)
uso: ausencia de habilidad, capacidad y conocimiento (presente) SEMI-MODAL
uso: hacer ofrecimientos
uso: habilidad, capacidad y conocimiento (presente)
uso: ausencia de habilidad, capacidad y conocimiento (presente)
uso: ofrecerse uno mismo para hacer algo (formal)
uso: permiso (dar permiso)
uso: habilidad, capacidad y conocimiento (pasado) SEMI-MODAL
uso: obligación
uso: prohibición