"A goose runs slower than a tiger."

Translation: Gęś biega wolniej niż tygrys.

[EvelinaEliana]

Biega vs. biegnie? Is it a difference of habitual vs. right now?

[immery]

biega = habitual. biegnie- right now
In this sentence both are correct, biega is less ambiguous that it's animals' ability to run, or what happens now.

[tadjanow]

The dictionary does not distinguish between habitual and non-habitual in this case.
See e.g. https://pl.wiktionary.org/wiki/biegać , the two examples are:

• Codziennie biegam (I run every day)

• Psy biegały (The dogs were running)

[immery]

Biegać is like pływać, jeżdzić, latać - it is either directionless activity right now, ability to do this, or repeated action.

Biec, płynąć, jechać, lecieć - happens at the moment , or ability to do this.( only speed comparisions and numbers come to my mind here - but maybe it's me)

from your link

biegać wyraża pewną regularność, ciągłość; biec dotyczy danej chwili

[EvelinaEliana]

Thanks, that makes sense. I used biegnie and it was marked wrong. If it means right now then I can see how it could be wrong - the English version "a goose runs" implies habitual or the animal's general ability to run; right now would likely be "the goose is running."

[immery]

In this context it should be ok, but then maybe not marking it correct is educational. It's an exception, and disturbs neat division. It's like allowing I'm loving it in a lesson about not using love in continuous tense.

[tadjanow]

There are two verbs which mean the same thing and can be used interchangeably 'biec/biegnąć' and 'biegać'. Both 'biega' and 'biegnie' are equally correct here.

[EvelinaEliana]

Thanks. I probably should have reported then - I used biegnie and it was marked wrong.

[JerryMcCarthy99]

"more slowly" p l e a s e....

[Jellei]

Will be default now.