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Why does time flies so FAST but not QUICKLY? I always thought that for an adverb it's better to use quickly but not fast. Am I wrong? Can you clarify it to me, pleeeease? :-) Desirable to get an answer from a BrE native speaker ^^

Answers · 5

3
"Fast" can be either an adjective and an adverb. There's nothing wrong with saying "Time flies so quickly". It's just as grammatical and acceptable as "Time flies so fast."
2
Normally we will just say 'Time flies' e.g. Time flies when you're having fun

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