Gerund or Progressive/Continuous
Is it a Gerund or a Progressive Form?
Both forms end in -ing. Nevertheless it is easy to find out whether it is a Gerund or a Progressive form.
1. Progressive Tenses
These tenses are formed with to be and the infinitive + -ing.
|He is reading a book.||Present Progressive|
|He was reading a book.||Past Progressive|
|He has been reading a book for three hours.||Present Perfect Progressive|
|He had been reading a book before Mary came in.||Past Perfect Progressive|
|He will be reading a book when I get home.||will-future Progressive|
|He will have been reading a book.||Future Perfect Progressive|
|He would be reading a book if he had time.||Conditional Progressive|
|He would have been reading a book if he had had time.||Conditional Perfect Progressive|
|A book is being read.||Present Progressive → Passive|
|A book was being read.||Past Progressive → Passive|
The Gerund is formed only with infinitive + -ing.
|Reading books is great fun.|
|He likes reading books.|
|He is looking forward to reading books on Sunday.|
|He is keen on reading books.|
|He is used to reading books.|
|What about reading books?|
|He likes the idea of reading books.|
|After reading the book, he went to bed.|