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Impersonal Subjects: Gerund and It + Infinitive


Compare these two sentences:

Studying English is sometimes boring. and It is sometimes boring to study English.

Both of the sentences are used to make general statements about an activity - studying English. Here is an overview of the two forms:

gerund + object + 'to be' conjugated + (adverb of frequency) + adjective


Playing tennis is excellent exercise.
Reading English newspapers is often difficult.

It + 'to be' conjugated + (adverb of frequency) + adjective + infinitive


It is sometimes exciting to walk in the pouring rain.
It was strange to say that Russian is easier than English.

Two Exceptions

The phrases 'It is worth' and 'It is no use' take the gerund NOT the infinitive form.

It is worth / It is no use + gerund + object


It is worth driving to the lake to have a look around.
It is no use studying for this exam.


Change the sentences from the original to the other similar structure. Click on to the next page for the answers.


It is sometimes easy to forget your cell phone number.


Forgetting your cell phone number is sometimes easy.

  1. Playing chess requires great concentration.
  2. It is not easy to learn Chinese.
  3. It is difficult to understand the motives of many politicians.
  4. Interviewing applicants is often stressful and unrewarding.
  5. Speaking English is always useful when travelling abroad.
  6. It is never simple to move abroad.
  7. Thinking about danger is often illogical.
  8. It has been difficult to accept his death.
  9. Flying to Africa will be great fun.
  10. Working hard for so many years has been tiring for them.
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