TP 3 Subject Verb Inversion

Here are notes on Subject Verb Inversion that you all asked for ....


Inversion is used in normal everyday English :
 
    To make questions :  Does he?   Can you?

    After 'so' 'neither', 'nor'  :  So do I, neither do I, nor do I.



In written English and in a very formal style, inversion is used in the following cases :
 

After negative adverbial expressions  :
        Under no circumstances can we accept cheques.
        In no way can he be held responsible.
        At no time did she say she would come. 

 After adverbial expressions of place :
        Round the corner came the postman.
        On the doorstep was a bunch of flowers. 

After 'seldom', 'rarely', 'never', in comparisons :
        Seldom have I seen such a beautiful view.
        Rarely did he pay anyone a compliment.
        Never had I felt so happy.

After 'hardly', 'scarcely', 'no sooner', when one thing happens after another.

        Hardly had I begun to speak when I was interrupted.
        Scarcely had we started our meal when the phone rang.
        No sooner had I arrived than they all started to argue.

    After adverbial expressions beginning with 'only' :
        Only after the meeting did I realize the importance of the   subject.

    After exclamations with 'here' and 'there' :
        Here comes the winner!
        There goes all our money!


In formal English, the subject and the auxiliary (verb) can be inverted in the if-clause with if omitted :


Should you see Kate, say hi from me. (if you should see Kate)
    
Were he to propose to you now, what would you say? (if he were to propose to you)

Were I you, I would stop smoking. (if I were you)

Were it not for Miguel, we wouldn't know what to do now. (if it weren't for Miguel)

Had we booked our flight earlier, it would have been cheaper. (if we had booked our flight earlier)

Had it not been for your foolishness, we wouldn't have got lost. (if it hadn't been for your foolishness)



Source : grammaring.com and learn-english-today.com