Which Of These Sentences Is Correct ????

[Gizmonster]

So the choices are:

...... but isn't that's why the sellers are charged a premium?

Or:

....... but isn't that why the sellers are charged a premium?

The only difference in the sentences is "that" or "that's".

Me and the missus can't agree or convince the other one otherwise .... and my dad can't make his mind up either way.

Answers on a postcard please :)

[JimF]

The second one.

[Baldric]

THAT is correct

[pixie374]

Second one

[Cloverjo]

I agree.

[elliemay1]

but isn't that why the sellers are charged a premium?

[geevo41]

.... but isn't that's why the sellers are charged a premium?

Is correct because if you replace the apostrophe 'that's' becomes 'that is'

[Sqad]

The first one..."that's."

[wolf63]

the second one sounds better if you say it out loud. Even if the first one was grammatically correct it is too 'wordy'.

[JimF]

The first one isn't grammatically correct.

[Cloverjo]

With the first one you've got 'is' twice in the sentence. You only need one, so the second example is correct.

[Baldric]

geevo,

are you seriously saying that,

/// but isn't that is why the sellers are charged a premium? ///

is correct?

[Buenchico]

The 'is' which is obtained by expanding "that's" in the first option is superfluous, so the second one is correct.

[SparklyKid]

First one sounds better.

[Gizmonster]

My missus says the 1st one; I say the 2nd one.

My train of thought was same as geevo41 .... but after a "debate" with the missus, she's pointed out that the "is" is already being used in the sentence ("isn't") ...... so you're effectively saying "is" twice ... so now it looks like i'll be eating humble pie and admitting that the 2nd one is correct.

If the "isn't" wasn't being used, then it would be correct to say "that's why" .... but I don't think it's correct to say "isn't that's why".

Unless anyone convinces me otherwise .... the 2nd one gets the vote

[Sqad]

I was wrong....the second is correct.

[Gizmonster]

//// I was wrong....the second is correct. ////

Me and you both :(

I don't like admitting I'm wrong (but I will when I know I'm wrong) ..... but admitting defeat to my missus ...... now that hurts ......

[Tilly2]

The second one is the correct one.

[Togo]

The second option only "works"( in the brief text example given) with a punctuation mark.

""...... but isn't, that's why the sellers are charged a premium?"" Togo Edit.

[geevo41]

It's not often that I get caught out on grammar, even if I say so myself, but I admit in this case I was wrong. Of course ,removing all the apostrophes reads: Is that not why.....
Hangs head in shame and blames effects of Shiraz

[Togo]

Ohh for a proper edit function

The FIRST one only works....