Inversión del verbo con ciertos adverbios

1. I haven’t got a ticket. – Neither / nor have I. I have never before been asked to accept a bribe / Never before had I been asked to accept a bribe. They not only rob you, they smash everything too / Not only do they rob you, they smash everything too. He didn’t realize that he had lost it till he got home / Not till he got home did he realize that he had lost it. This switch must not be touched on any account / On no account must this switch be touched. He was able to make him heard only by shouting / Only by shouting was he able to make himself heard. This remedy rarely failed / Rarely did this remedy fail. He became so suspicious that … / So suspicious did he become that … He had no money and didn’t know anyone he could borrow from / He had no money, nor did he know anyone he could borrow from.

[Ciertos adverbios y frases adverbiales, sobre todo con un sentido restrictivo o negativo, pueden poe énfasis colocarse en posición inicial al comienzo de la frase, e ir seguidos de la forma invertida (i.e. interrogativa) del verbo. Un segundo verbo negativo en una frase puede también expresarse mediante «nor» con inversión.]