I have never seen such a wonderful sight. (never)
Never have I seen such a wonderful sight.
The sun had only just gone down when the temperature fell dramatically. (scarcely)
Scarcely had the sun gone down when the temperature fell dramatically.
I didn't realize that I'd already read the book until I opened it. (not until)
Not until I opened the bookd did I realize that I 'd already read the book.
The exam began when all the papers had been given out. (Only when)
Only when all the papers had been given out did the exam begin.
You rarely find two people so alike. (Rarely)
Rarely do you find two people so alike.
He betrayed my trust and he lied to me (not only)
Not only did he betray my trust, (but) he also lied to me.
As soon as the teacher turned her back, the children started whispering. (No Sooner)
No sooner had the teacher turned her back than the children started whispering.
The woman had just sat down when her baby began to cry. (Hardly)
Hardly had the woman sat down when her baby began to cry