help needed otherwise I'm not going to be sleeping well

[5jj]

This is, unfortunately, the danger of being taught any language by a non-native speaker.

However, the majority of teachers of foreign languages in the world are non-native speakers, and many of them do a very good job. Remember, too, that there are native speakers who are not necessarily good teachers and/or who have strange ideas about the workings of their own language.

[ostap77]

If I were taking English language classes at a lnaguage center or school, I would have done that already. But it's part of the University course. They are not going to change anything in the middle of the semester. The thing is that when I've been working hard to prepare for a test I want to be graded adequatly. I mean no better no worse just what I deserve.

[emsr2d2]

However, the majority of teachers of foreign languages in the world are non-native speakers, and many of them do a very good job. Remember, too, that there are native speakers who are not necessarily good teachers and/or who have strange ideas about the workings of their own language.

I should point out that I wasn't trying to say that all non-native teachers would make this kind of mistake, but it is a danger. I would say there's probably a higher likelihood of that kind of error with a non-native than a native. A native speaker may well not be able to explain to you why the answer is right/wrong, but they will usually know what the standard usage is.

[5jj]

A native speaker may well not be able to explain to you why the answer is right/wrong, but they will usually know what the standard usage is.

Whilst it would be foolish of me to attempt to claim that any native speaker is not fluent in the language, I do believe that many native speakers do not know what the standard usage is. One of the reasons I stopped training teachers was my frustration at the ignorance of some native speakers about the workings of their own language.