Meaning 1 · most common
prove to be
to happen in a particular way, or to have a particular result, especially one that is unexpected.
Examples
The weather turned out to be better than we expected.
A: How was the movie?
B: It turned out to be really funny!
Common mistake
Not: The film turned out boring.
Say: The film turned out to be boring. / The film turned out boring (informal).
Most naturally 'turn out TO BE + adjective', or 'turn out + that-clause'.
More on “prove to be”Another example · Tell it apart · Goes with · Tip
Another example
At first, I thought the exam would be very difficult, but it turned out to be quite easy.
Tell it apart
It turned out to be a great day.
A huge crowd turned out for the match.
Goes with
- turn out + result