Sentence assistance

The first and third are OK; the second is not.

Mister MicawberThe first and third are OK; the second is not.

Thanks, teacher.

Is the second just missing a word? Would the addition of these words work:

I love you beyond 'any description' you can imagine.
I love you beyond 'that' you can imagine.

What do you think about this, Mister Micawber?

AnonymousWould the addition of these words work:I love you beyond 'any description' you can imagine.I love you beyond 'that' you can imagine.

These would:

I love you beyond any description you can imagine.
I love you beyond what/whatever you can imagine.

Mister MicawberI love you beyond any description you can imagine.I love you beyond what/whatever you can imagine.

Thanks a lot, teacher. So I basically need something between 'beyond' and 'you' in order for it to be grammatically correct!

However, I have seen it without a word, maybe people say it in casual speaking. Would it work in casual speaking,

Mister MicawberThe first and third are OK; the second is not.

AnonymousThanks a lot, teacher. So I basically need something between 'beyond' and 'you' in order for it to be grammatically correct!

You need a pronoun to introduce a noun clause.

Beyond is a preposition. It needs a noun or pronoun as an object (complement).
Here are some examples following beyond:
That is beyond belief.

AlpheccaStarsYou need a pronoun to introduce a noun clause.

Thank you very much. That was helpful!