Dear students,
Here you have some explanations about modals. Please have it a look and send me an e-mail if you have any questions. This is another excellent powerpoint from the teacher Carmen Torres.
This is our last grammar point. Have a look at this powerpoint. I's a useful powerpoint by a partner teacher called Mar Pérez. I hope it helps you to understand The passive voice better. The explanations are in Spanish.
There is an interesting Grammar Blog where you can revise your Gerunds and Infinitives. I hope it is useful for you. The explanations are in Spanish. You can also revise a lot of grammar there.