Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

Input: Consider Input: When should whilst be used instead of while? For example, should I use the first or the second sentence? They don't do this whilst they do that. They don't do this while they do that. Which would be correct?.

Output: I believe while and whilst are interchangeable, but whilst is more archaic and adds a nice flavoring to the sentence. That being said, 'whilst' doesn't seem to come up so often in the middle of a sentence as you had it there, so I would use 'while' in that case, even though both are grammatically correct. Whilst seems more apt to be put at the beginnings of sentences, e.g. Whilst going about my merry way I chanced upon a vagabond. Taking this serendipitous opportunity to satiate my bloodlust I decapitated him with a fork.


Input: Consider Input: I was writing something along '... I could only read upto page 34' when my spell-check app Grammarly complained that I should rather use 'up to'. So, what's the difference between the two and is there really any difference? Or is it that the condensation 'upto' is not technically allowed?.

Output: Upto is a misspelling of up to. -- Wiktionary Use up to with a space between the two words. Also, as Yosef Baskin says: You can use the following self-test: Does the single word say something different from the two words? If not, stay with two words. By contrast, into and onto do mean things other than in to and on to, so they work as single words.


Input: Consider Input: I was writing something along '... I could only read upto page 34' when my spell-check app Grammarly complained that I should rather use 'up to'. So, what's the difference between the two and is there really any difference? Or is it that the condensation 'upto' is not technically allowed?.


Output: Upto is a misspelling of up to. -- Wiktionary Use up to with a space between the two words. Also, as Yosef Baskin says: You can use the following self-test: Does the single word say something different from the two words? If not, stay with two words. By contrast, into and onto do mean things other than in to and on to, so they work as single words.


