Little did they realise .......................................................complete.
.........................?..............................
Not only did he/she................................but..........also ...................complete.
.................?.............................
Under no circumstances.....................................................complete.
......................?...............................
Seldom/rarely/never/have I............................................complete.
...................?...........................
Hardly ever did we/I ...................................................complete
.......................?.............................
Never again will I/we.............................................complete.
...................?........................
Only when............................can you ................................complete.
....................?.................
Only then was I ...........................................complete.
...............?............................
Not until ..................................did we.....................................complete.
...................?............................
At no time were you ..................................................complete.
....................?............................
Not since .........................have I .............................................complete.
.....................?..........................
On no account must you ..............................................................complete.
...................?..........................
What are inversions used for?
Emphasis a negative phrase at the beginning of a sentence, subject and verb are normally reversed (formal)