usignolo
Junior Member
- Joined
- Jul 31, 2009
- Member Type
- Student or Learner
- Native Language
- Russian
- Home Country
- Russian Federation
- Current Location
- Russian Federation
Word formation
Here is the sentence:
1)Television has (proven)an important source of production finance.
The correct answer is proved and I chose it, but I would like to know why "to be" is not used in this case.
A) Is it the [/FONT]Nominative with the Infinitive=Complex Subject?
It is a pity that in all my grammar books different authors write something like this
"The linking verbs, appear, prove, and seem are sometimes followed by the infinitive to be and a complement (an adjective or noun). This use of the infinitive is called a predicate infinitive (PI)."
I always don't like these "often" or "sometimes".
Could you look for an example of using prove like in my sentence without to in a good grammar book.
It's very important for me, but I can't find any example of using prove without to in grammar books.
Thanks in advance!