The groove/jagged of the key dont match

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. There are two sets of different identical keys and one single key.
  2. The keys come in a set of three keys.
  3. There are five keys, with two different sets of same keys and one single key.
  4. The groove/jagged of the key dont match.

Are the above sentences correct? Please advise.

2

At best they are clumsily expressed. They aren’t natural (because what you’ve said is not very clear). There is probably a better way of expressing each, but without knowing your exact meaning it’s not possible to say with accuracy what a better option would be
For example
I suspect you mean this for number 1:
There are two sets (of keys), each containing three keys, two of which are identical.
and this for 2:
The sets (of keys) each comprise three keys.
While 3 is more complicated to work out, but you might mean:
There are five keys on a set, which comprises two different pairs of identical keys and one other key.
4) should probably simply be:
The keys don’t match.

3

As the Coach said the sentences are clumsy. And not natural.

I would write it like-

There are some keys ( on the table).

The teeth of the keys ’ are different from each other. / are not the same. / are not identical.

4

When are you going to start posting your grammar questions in the grammar section? I have asked you several times now via PM. Thanks.[YSaerTTEW443543]

TOEIC listening, photographs: In the workshop[YSaerTTEW443543]