"वे बहुत तेज़ नाचते हैं।"

Translation: They dance very fast.

[MrRoboto7]

'They dance very quickly' should also be accepted

[Sam362597]

Agreed. In BrEng I think this is the only correct answer - fast is an adjective and quickly an adverb. I think fast is acceptable as an adverb in AmEng though, and probably casually fine in BrEng too.

[This_is_Roshan]

According to the Oxford dictionary, 'fast' is an adverb as well as an adjective in British English.

[whimslcott]

I was always taught that "quickly" was acceptable while "fast" was not.

[CarissaS103]

They dance very fast sounds weird to me. "Quickly" at least should be accepted.

[EmmaDow3]

fast is an adjective AND adverb. it is irregular. both words should be acepted

[JamesTWils]

Is there any difference between adverbs and adjectives in Hindi? Could तेज़ be used as either?

[yuhua1a]

Adjectives sometimes inflect while adverbs do not from my understanding. And it appears that तेज़ is both.

[LinguisticBoi]

is तेज़ the adverb? and what about "धीरे" is that an adverb? what's the adjective forms?

[ph.krSi1q]

I like to learn languages in this app
and it is a nice app

[benros1]

How would you translate
''They dance too fast/quickly?''

[Sam362597]

Bahut zyada tez, I think.

[DennisLDuolingo]

How would you say "They dance faster."?

[ziliya]

How would I say "They dance much faster"?