There is a sentence here: A good time was had by all.
Then, what is the meaning of "A good time was had by all"? Explain the structure of this sentence, please.
Dear Teacher 2006,
Thank you very much for your kind help and good reply!
"themself" is nonstandard and its use is criticized, but it is being used by some to try to solve the problems with the other two choices.
There is no perfect solution.
I have observed that everyone can be used like a grammatical plural, just like some nouns like police etc.
CNN.com - Transcripts
"everyone has their role, everyone has their timing, there are even backups to the backups. "
China Digital Times cnn
“Everyone has their own point of view,” Jin said. But she said, addressing the protesters, “Your actions are wrong.”
Inside Cable News :: More on the CNN leaker firing… :: October :: 2005
"...but everyone has their own policy about that sort of thing. "
These and lots of other publications use it as a plural. ;)
Of course it is also possible to use it with the singular, I never meant to say anything else.
Let's go back to the start - the posting "Everyone ... (enjoyed themself)"
Now here is a sort of schizophrenic way of not wanting to make up your mind whether you want singular or plural - them being plural and self being singular. It seems to be general non-standard usage (esp. US?) but I wouldn't recommend it to anybody who's learning the language and is not a native. Actually I wouldn't use it even if I was a native speaker. I would go for either "Everyone enjoyed himself" - risking to be sexist ;) - or "Everyone enjoyed themselves".