"Now he will be able to be happy."

Translation: Teraz będzie mógł być szczęśliwy.

[LidkaAndr]

Should be "Teraz będzie mógł być szczęśliwy"

[immery]

to sum up discussion : please report this sentence, we should not teach it.

[Vengir]

Both variants should be correct (I think), although yours looks much nicer.

[LidkaAndr]

I'm native speaker and believe me - the "móc" variant is not correct :) http://pl.bab.la/koniugacja/polski/moc
I hope you will be able to check this website and it will help you somehow. [This website is really cool because you can write any verb and it will give you all possible conjugation :)]
duolingo staff should correct it but I don't know how to let them know haha

[Vengir]

Well, surprise, I am native speaker too. :)

„Móc” is of course an infinitive form and generally you can form future tense with future „być” + infinitive or future „być” + past tense form. (and it seems babla doesn't recognise the first possibility for any verb).

If somebody would use the sentence above all I could say is that it doesn't look nice, but I'm unable to cite any specific rule that would forbid it.

[LidkaAndr]

haha so why do we speak in english? Ok you are right, it is correct. Anyway I've never heard that before :D
http://www.wsjp.pl/index.php?id_hasla=35513&id_znaczenia=3884669&l=1

[Vengir]

It's nice for any bypassers to be able to read our conversation for educational purposes.

[Euhan1]

Please discuss in English! It would be very hard for learners to understand all but the most trivial discussions otherwise.

[pepkin88]

It's hard to find a compelling source on the prescriptive correctness of the phrase "będzie móc być". Nevertheless, it sounds really unnatural and I reported it as such.

[Jellei]

Deleted all the options with "móc".

[AnnaBdbTH]

"Teraz będzie umiał być szczęśliwy" - czy to tłumaczenie tutaj nie pasuje?

[pdamerval]

"Teraz będzie umiał być szczęśliwy" was rejected, it is not clear why as this is a sentence where "be able to" and "know how to" are synonymous contextually.

[AnnaBdbTH]

Thanks :)

[Meikel100]

My response, "teraz on potrafi być szcześliwy", should be accepted.

[Marchfew]

Dlaczego to jest nieporpawne: "On teraz będzie mógł być szczęśliwy"?

[hD2A8OpH]

Shouldn't it recognize ,,teraz będzie mógł być szczęśliwym'' as another correct answer instead of a typo?

[BenConway6]

What about "już" instead of "teraz"? Już on będzie mógł być szczęśliwy.