Grammar/ 'long since' Would you help me again please? Thank you.

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi all of you,

Are the following sentences correct?

  • The truth has long since been revealed.

  • Casanova at the end of his life, shouting to his maid: 'I was killed in Vienna, I was killed in Russia, I was killed in Poland and you must have thought that I was long since dead, didn’t you? (ofcourse, the the killings were all rumours, because he died a natural death) I don’t know if ‘didn’t you’ is the correct short answer here.

  • I have long since forgiven you for what you did to me twenty years ago.

  • The castle has long since been demolished.

Now, if the sentences are correct, does ‘long since’ always take the position after an auxiliary verb?

Thanks

2

No, not always:

the crowd long since forgotten, he pushed away from the wall
A grizzled ex-Fixer from London long since supposedly retired, he handled security
The oil pours out nearly every week, and some swamps are long since lifeless.
Slightly bloated half-moon had set long since
She would have continued long since, had he never revealed himself to her.

3

Thank you Mister Micawber for giving me these examples, but were my sentences correct?

4

Why do you think any of them might be wrong?

5

Sometimes I’m not very self-confident in my skills and abilities, that’s why.

6

Hello Mister Micawber, why did you wish to know why I thought that any of my sentences were wrong? Oh, and would you please so kind as to take look at my last thread, please. I’d be very grateful. Thank you.