"I do not know this word, sorry."

Translation: Nie znam tego słowa, przepraszam.

[mishemplushem]

Does "przepraszam" have to follow the rest of the sentence, or can it precede it?

[Jellei]

In the exercise, let's keep it to where it is in the sentence you're translating.

But generally it can easily be in the beginning as well. Seems more common, actually.

[FrankDeSme]

It's not just more common, putting it at the end is just blatantly impolite.

[Jellei]

Putting it at the end simply makes it clear that it's not an "excuse me", I don't see anything even remotely impolite about it.

[RadhaTereska]

wiedzieć and znać -- is there a difference?

[immery]

Yes there is. Although in this sentence it is not that clear.

I know this word- znam to słowo
I know what this word means- wiem co znaczy to słowo

here is a longer explanation
https://www.duolingo.com/comment/13865766

[RadhaTereska]

Thanks for the explanations and I'm still left confused that I was marked wrong to use the wiedzieć verb.

[immery]

I think it's because like vegnir said

I feel that when you can (in Polish) immediately follow the verb for "know" with its object, you use "znać". If it would require a preposition or something, then use "wiedzieć"

[ChristineB958863]

I don't understand why you can move some words around and not others like --- Przepraszam, nie znam tego słowa.

[Dave419539]

Duo does it all the time with prepositional phrases (move from the start of the sentence to the end or vice versa), seems weird it wouldn't allow it on this one as it arguably sounds nicer.

[Jellei]

If we move "przepraszam" to the beginning, it will create ambiguity which it doesn't have right now, it will be quite likely to mean "excuse me".