[Happy Camper]

How do you say a sentence like this correctly?

It's mine and Jenny's car.
Or
It's Jenny's and my car?
Or
It's Jenny and my car?

It's very confusing and I find myself using some variation of it in my classes.

Thanks
HC

[little sage]

Happy Camper,
I did a search and found part of your answer.

When two people jointly possess one thing, you can use one appostrophe:
"Tim and Jenny's car"

Use apostrophes twice when the people possess things separately:
"Tim's and Jenny's cars"

If one word is a possessive adjective, then both words should be possessive, so
"It's my and Jenny's car"
but I think "mine and Jenny's car" is wrong...

I'll keep looking for a better explanation...

[Eric]

Any idea on these phrases using My or Mine?

[little sage]

Oreamnos,

I think the 3rd example above answers your question.

"mine" is wrong because you can't say "jenny's and mine car"
and I think the word with the apostrophe has to come last, so
"my and jenny's car" not "jenny's and my car"

But I have yet to find a grammar site explaining the 3rd example explicitly

[Happy Camper]

Thanks little sage!

[bumblevee]

I think that it should be 'This is Jenny's and my car.' We were always taught that out of respect, you put the other person ahead of yourself. And it is definately not 'This is Jenny's and mine car.' Would you say "This is mine car?" I don't think so!