[Grammar] Never in my life have I felt so frightened

[BallsOfSteel]

Hello.

Recently I did a test and wrote the following sentence:

Never in my life I have felt so frightened.

And I was instantly corrected by the software: Never in my life have I felt so frightened. Does it really make that big difference? If it does, is there any grammar reference that can help me explain the rule to other people?

Thank you.

 

[bhaisahab]

Yes, it makes that big a difference.

 

[emsr2d2]

Yes, it makes a difference. Your sentence was not grammatical. When we change the word order so that the sentence starts with "never", we reverse the subject and the verb.

I have never seen anything so disgusting.
Never have I seen anything so disgusting.

I have never been so frightened.
Never have I been so frightened.

My brother has never looked so ridiculous.
Never has my brother looked so ridiculous.