Translation of "Grammatically" in Polish

The sentence "This sentence is grammatically correct." is grammatically correct.

Zdanie "To zdanie jest poprawne gramatycznie." jest poprawne gramatycznie.

The sentence is not grammatically accurate.

Zdanie nie jest gramatycznie dokładne.

Strictly speaking, this sentence is grammatically incorrect.

Ściśle rzecz ujmując, to zdanie jest niepoprawne gramatycznie.

- Grammatically there is nothing wrong with this sentence, but I think it would never actually be used.
- Although this sentence has no grammatical mistakes, I think it would practically never be used.
- Though grammatically there is nothing wrong with this sentence, I doubt if anyone would actually ever use it.
- Though grammatically there's nothing wrong with this sentence, I doubt if anyone would actually ever use it.

To zdanie jest gramatycznie poprawne, ale w rzeczywistości raczej się tak nie powie.