"A gyerekek kiülnek a kertbe a fa alá és játszanak."

Translation: The children sit out in the garden under the tree and play.

[kebukebu]

Many of these English translations are grammatically impossible, especially when it comes to motion verbs.

For a verb like "sit", English usually can't distinguish motion from state: "The children sit in the garden under the tree and play." or "The children sit out in the garden under the tree and play."

With an explicit motion verb: "The children go out and sit in the garden under the tree and play."

Likewise, in English, it's very unusual to say that a person "sits into a chair" (this is in reference to an earlier exercise). You can "get into a chair" or "sit down in a chair" or just "sit in a chair". But "sit" doesn't like to take prepositions of motion.

[KlausFendt]

"Sit out into..." is not correct English in my opinion

[Gertjie-Gaai]

This answer is very awkward and it looks like a literal translation.

I'd rather say "The children are sitting under the tree in the garden and they are playing".

There is no need to even mention "out" - if you are in the garden you can't be inside.

[RyagonIV]

The Hungarian sentence is looking at the entire action - the children going out of the house (ki-), into the garden (-be), sitting down under the tree (alá), and starting playing.

[ernierozsa]

I agree. You can go into the garden but you would sit in the garden.

[wxfrog]

The children sit out in the garden and play under the tree. Means exactly the same thing as the accepted answer in English.

[fekundulo]

This sentence must be fixed.

[LszlPataky]

I think the less is better: sit out the garden

[RyagonIV]

László, you cannot leave out the preposition here. "Sit" doesn't take objects, so you need to say "in the garden" or similar.