TalkingPencil

Use an -ing form as a subject and after a preposition

Questions in this subject are always in English
The text is what is being learned, so translating it would change the exercise. Explanations still follow your chosen language.

Follow this one with me, a step at a time. Try to guess each step first.
Worked example 1

Advice column Many students worry about ___ (make) mistakes in English.

Remember: "about" is a preposition. What form of a verb follows a preposition?

Common mistakes

  • Used a verb with a tense. There is no room for a tense here: this position needs an -ing form.
  • Used the plain verb where an -ing form is needed. A verb used as a subject, or after a preposition, takes -ing.