"Jesteś dzieckiem."

Translation: You are a child.

[LaisReis1]

It's weird how things start making sense and we do not even realize! Let's keep going, ludzie!

[RezaMahmoudi]

Think Polish! Let the words come out from the heart...

[PaCa826187]

To be fair, I had to look up dzieckiem but I know what you mean (well, with other sentences).

[Peachcat.Moon]

So true xD

[isaacishumble]

Finally Duo, You know me.

[James844856]

Haha it speaks the truth about me

[isaacishumble]

ha

[declanyo]

why is the instrumental used here?

[Jellei]

Such a sentence ("X is Y", with X being a personal pronoun and Y being a noun phrase) just needs Instrumental for Y.

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

[Kirstynj]

whats the difference between accusative cases and instrumental cases?

[Jellei]

Generally, Accusative is for the direct object, and Instrumental for using something as an instrument, for doing something 'with' something/someone, and sentences like here: "You are a child".

[Royislearning]

Jellei!!!!
The first link opens to a page with source code and if you click any of it it sends you to a virus page!!! The second link goes to a blank page. Please fix this or take it down!!! I was not prepared to end up with a virus!!

[Jellei]

Holy hell... I edited that comment, but this link may be in hundreds of comments, this used to be one of the best resources on Polish... recently I couldn't open it but I thought it's just my work laptop having weird restrictions...

I will ask if there is any solution to remove the link from all the forums, but I have no clue...

EDIT: The removal is in progress, there is under 200 comments mentioning the website.

[Biancuhhh]

Why is the instrumental of dziecko not dzieckem? Just a weird declining case?

[Jellei]

Sounds 'k' and 'g' get softened here.

[Wayne230460]

I wrote that

[Jellei]

Many people wrote "You are a child" to someone at some point in their lives.