"Konie są duże."

Translation: Horses are big.

[LucasMartn16]

Polish "są" sounds like spanish "son". son=are (3rd pers plur)

[Wangbarros]

Even better: from what I understood, ą indicates a nasal vowel. 3rd person plural for portuguese is "são". Ã also indicates a nasal vowel.

[alik1989]

And it sounds almost identical the the French third personal plural sont.

[cloroxblea383174]

Why not koń?

[Jellei]

Because that's singular (Koń jest duży), and the sentence is about plural.

[Gabriel_Bach]

Nouns in plural take the same adjectival ending of neuter nouns in the nominative case?

[Gerardd88]

There are different genders in plural declension. Maybe this will help:
https://en.wikibooks.org/wiki/Polish/Adjectives

[Gabriel_Bach]

I see, thanks for confirming it.

[juliaTrake]

What is that "są"?

[RonaldLett]

Są is the form of być (to be) that is associated with a plural third person subject (horses). It would normally be translated as "are".

[RebeccaJim5]

I wrote the horses are big and it was incorrect 'cause is without "the" c'moooon

[Jellei]

Both the answer with and without "the" should have worked.

[RobertLech3]

That sucks. I didn't know duo didn't like that.

[EagleBird3]

When making a word a plural (eg jałko to jałki) do you just replace the o (as in ocelot) with a i (as in india) at the end? Thanks.

[alik1989]

Unfortunately, it's not as simple as that. I think you meant jabłko, the plural form of which is jabłka. In this example koń becomes konie. Besides that, typical plural endings can also be -i -y or -owie.

Here is a post on that topic.