1. I know the word 'fast' can be an adjective or adverb, and the word 'quick' can be both, too. My question is what's the difference between these two? What's the difference in usage? BTW, quickly is an adverb. Is it the same as 'quick'? Does it use in a more formal writing?
2. Is " ain't " not a standard word to use? like we may not use it in writing?
Thanks.
Top answer
ain't is not standard and is not used in writing. fast / quick See . Come quick!
— CalifJim
ain't is not standard and is not used in writing.
fast / quick See .
Come quick!
Come quickly!
) Jerry always has a quick answer.
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