is it
She said: "I'm working now".
She said she was working then.
I have never seen anything so beautiful.
Never have I seen anything so beautiful.
The weather isn't fine and we stay at home.
If the weather was fine, we wouldn't stay fine.
I want to buy his book. (It)
It is his book that I want to buy.
Everybody wants to rule the world, ______________?
He told me: "The weather will get better".
He told me the weather would get better.
I rarely take part in such games.
Rarely do I take part in such games.
She arrived late and the boss was angry.
If she hadn't arrived late, the boss wouldn't have been angry.
I find it surpising that he came first. (What)
What I find surpising is that he came first.
Nobody wants to be criticised, ___________?
He asked me : "Why do you want to help me?"
He asked me why I wanted to help him.
If you hadn't helped us, we would be in trouble now.
Had you not helped us, we would be in trouble now.
They didn't check the numbers and made a mistake.
If they had checked the numbers, they wouldn't have made a mistake.
He warned me not to go there.
Don't worry, _________ ?
will you
The teacher asked us: "Have you finished the book?"
The teacher asked us if/whether we had finished the book.
I won't do it under any circumstances.
Under no circumstances will I do it.
We don't like him, so we didn't invite him to the party.
If we liked him, we would have invited him.
She supported me. (What)
What she did was support me.
Let's go to the cinema, __________________?
shall we
My sister asked me: "Are you planning anything special tonight?"
My sister asked me if/whether I was planning anything special that night.
She is a brilliant scientist and she can play the violin.
No only is she a brilliant scientist but she can play the violin.
They didn't warn me in advance, I'm in trouble now.
If they had warned me in advance, I wouldn't be in trouble now.
We should buy a cat, I insist. (She insisted)
She insisted on buying a cat.