"Marzec jest miesiącem roku."

Translation: March is a month of the year.

[ZacharyByrski]

Is "March is a month in the year" wrong? It's a pretty normal way of saying it in English...

[Vengir]

It sounds to me like just another way to say the same thing, so you might try reporting it.

[Jack.Elliot]

I reported the very same thing yesterday

[johanes2]

Should it accept "March is a month of a year"?

[Jellei]

Not really, March is a month of every year, not just one 'a year'.

[johanes2]

Yes, that's true. Thanks!

[francesrainbow]

Does this mean that there doesn't need to be a Polish bit saying "of the"? (It's just inferred from the context?) Thanks!

[Jellei]

One of the most important functions of the Genitive case is performing the function of English "of". And "the" is not-existent in Polish anyway.

[seldur61]

Is it miesiącem (instrumental) roku (genitive) ?
How is it translated into "month of the year" by using declensions?

[Jellei]

Well, if you consider "month of the year" as a standalone phrase it's "miesiąc roku" (roku in Genitive, because of 'of'), and in the sentence, "miesiącem" takes Instrumental, but luckily "roku" stays in Genitive.