"A man is a human."

Translation: Mężczyzna to człowiek.

[JelleOK]

Why is it człowiek in the sentence 'mężczyzna to człowiek' but człowiekiem in the sentence 'dziewczynka to człowiekiem'?

[Jellei]

It's not, "Dziewczynka to człowiekiem" is wrong.

It's either "[Mężczyzna/Dziewczynka] to człowiek" or "[Mężczyzna/Dziewczynka] jest człowiekiem".

See more info here: https://forum.duolingo.com/comment/16373167

[DeniseD542]

Thank you, Jellei!

[George215793]

Mezczyzna jest człowiekiem OR Mezczyzna to Człowiek. Both ways apply.

[struankl]

Could it not be 'człowiek jest człowiekiem'?

[PippoQualu]

No, this would be "a person is a ...person"

[AgentTintin]

Why to ? Why not jest ?

[Jellei]

Two alternatives: "Mężczyzna to człowiek" ('to' + Nominative) or "Mężczyzna jest człowiekiem" ('jest' + Instrumental).

More info here: https://www.duolingo.com/comment/16373167

[rra27]

"Mężcyzyna jest człowiekiem" is marked incorrect. Why?

[Jellei]

The typo in "Mężczyzna" probably made it rejected.

[losik55]

Miężczyzna to jest człowiekiem is not true Polish?

[Jellei]

You don't use Instrumental after "to".

[tryingveryhard]

Oh, that explains why I keep getting these wrong. Oof. Thanks though :>

[Mrfunky04]

Is that the point of saying to instead of jest. To avoid the instrumental case?

[alik1989]

Exactly, same as with jest, which is used to avoid the nominative case ;)