"I buy clothes in January."

Translation: W styczniu kupuję ubrania.

[stdeykun]

I belive "ciuchy" should be correct too.

[agpie9]

I agree. I know it's colloqial but it's so common.

[ToeNouEven]

When I enter 'Kupuję ubrania w styczniu' it says that it is almost correct and that 'kupuje' is the correct form.

[Jellei]

Fixed, thanks for noticing.

[Gigio72860]

It gave me error with the same sentence.. i lost an heart when I shall have not..

[Jellei]

Are you sure you didn't have any typos? This is an accepted answer.

[MaryAshwood]

Why is this wrong? kupuję w styczniu ubrania

[Jellei]

I wouldn't personally use such a word order, but it's okay enough, added.

[Paula531833]

I entered ...kupuje ubrania w styczen...why is it wrong?

[Jellei]

"w" + a month needs the month to be in Locative case.