help me this question!please.....! I don't know how to choose it !

[Roman55]

I am not a teacher.

I don't know what you're talking about. Where did I write, 'was proved to be'?

 

[MikeNewYork]

Read your post again. If you were not objecting to "was proven to be" then there is no reason to object to that choice in the original question. Therefore, as I posted, two choices are correct in the original question.

 

[Roman55]

I am not a teacher.

I have read my post and you are making no sense. I did object to 'was proven to be'. That is the whole point.

 

[MikeNewYork]

And that led to my Ngrams. But it did not lead to your Ngrams. That was my point. You can't have it both ways.

 

[Roman55]

I am not a teacher.

And you then used the Ngrams to compare a phrase that is relevant to this thread with one that isn't.

 

[MikeNewYork]

Pass.