Infinitive or -ing?

Exercise 1
Exercise 2
Exercise 3
Exercise 4
Explicación en castellano y ejercicio

Change of meaning - an easy explanation
Exercise 5
Another way to explain it and a pdf exercise

Body facts!

15 curious body facts

More curious facts!

Modal verbs 1
Modal verbs 2
Modal verbs 3
Modal verbs 4
Modal verbs 5
must, have to should need
can, may, might, could

have to, can, and should

Reported speech: questions and commands

Exercise 1
Exercise 2 
Exercise 3  
Exercise 4 (this one on commands)
Mixed exercise 1
Mixed exercise 2

Reported speech

Exercise 1
Exercise 2
Exercise 3 (you can watch a video here if you want)
Exercise 4

Pasive sentences

Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5 (indirect object)
Exercise 6

Video 1
Video 2

Song

Conditionals

1st conditional
1st conditional
2nd conditional
3rd conditional
3rd conditional

USED TO

Exercise 1
Exercise 2
Exercise 3(pdf)