This is my and Dave’s car   OR

This is mine and Dave’s car.

This is Dave’s and Andrew’s car   OR

This is Dave and Andrew’s car

Simple grammar, I know. But I am uncertain, so I ask.

Thanks

This is my and Dave’s car
This is mine and Dave’s car. Correct

This is Dave’s and Andrew’s car. Correct.
This is Dave and Andrew’s car

Eliminate the second subject and see what sounds correct.
  This my (and Dave’s) car.  (Not mine)

This is Dave and Andrew’s car.
Dave’s and Andrew’s would refer to more than one car, Dave and Andrew each have one.

LukeJavan8 - 19 May 2009 04:17 PM

Eliminate the second subject and see what sounds correct.
  This my (and Dave’s) car.  (Not mine)

Yes, I agree.

Dave’s and Andrew’s would refer to more than one car, Dave and Andrew each have one.

If they each have one, I don’t think you can use the singular ‘this’ (unless you repeat it).  You need to say either:

“This is Dave’s [car] and this is Andrew’s car”  or
“These are Dave’s and Andrew’s cars”.

If there is only one car, I think I would go with “Dave’s and Andrew’s”, on the analogy of “my and Dave’s”.

NO.
Dave’s and Andrew’s. One car.

OK: edit. I can see what you are doing.
But I am not too sure it is correct.  I would not teach it that way, were I still teaching.

“Mine and Dave’s” versus “my and Dave’s”

I stand partially corrected, but I found the following example:

When one of the possessors in a compound possessive is a personal pronoun, we have to put both possessors in the possessive form or we end up with something silly: “Bill and my car had to be towed last night.”

Wouldn’t this be a similar example?

The advice given was to rewrite the sentence (e.g., the car belonging to Dave and me).

I am consistently putting everything in the possessive form (“my and Dave’s”; “Dave’s and Andrew’s”).
‘Mine’ cannot be used before a noun (except in old-fashioned English - e.g. “mine eyes”).

By the way, most uneducated people here in England would probably say “me and Dave’s car” and “Dave and Andrew’s car”.

The simplest solution is to buy another car.

ACB - 20 May 2009 03:59 PM

I am consistently putting everything in the possessive form (“my and Dave’s”; “Dave’s and Andrew’s”).
‘Mine’ cannot be used before a noun (except in old-fashioned English - e.g. “mine eyes”).

By the way, most uneducated people here in England would probably say “me and Dave’s car” and “Dave and Andrew’s car”.

I totally agree with ACB here in his example.
And Mine is no longer used except in such places as “Mine Eyes Have Seen the Glory of the Lord”, the hymn.

saparris - 20 May 2009 04:02 PM

The simplest solution is to buy another car.

In today’s economy?
Hasn’t the slump hit the South yet????
With gas I cannot afford the one I’ve got.

Dave’s car can be on blocks in the yard. I never liked him anyway.

With gas I cannot afford the one I’ve got.

I can afford neither scarlet ladies nor carmine goggomobiles, but I’m saving up !

Unfortunately, I’m saving down.

Can’t get much lower than bib-overalls, unless they make denim boxers.

I have been told that much of the nation’s wealth is in the front pockets of bib overalls.

(I look in mine. Nothing there but a little dirt and a few sprigs of fescue.)

Have a look in Annabel’s: there’s, noodles, small fish and tree branches floating in drool, all looking strangely similar in shape.