[Casiopea]

It looks good on the surface but it has its problems.

Consider:

Predicate Adjective
I am happy
==> Happy is what I am. (OK)

I am going to eat
==> Going to eat is what I am. (Not Ok)

Verb Phrase
I am going to eat.
==> Going to eat is what I am going to do (OK).

Predicate Adjective
Determined to argue is what I am. (OK)

Going to = future plan
Hoping to = future aspiration
intending to = future intention

Predicate Adjective
I am typing.
==> Typing I am. (Not OK)

Verb Phase
I am told not to stop.
==> Not to stop is what I am told. (OK)

:D