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1
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1answer
2k views

“Upon” at the very beginning of a sentence

Can a sentence begin with upon? Or should it be changed to on? For example: Upon a decrease in temperature... [Is this grammatical?] On a decrease in temperature... [What about this?]
3
votes
4answers
11k views

“Based on” vs. “based upon”

Should I use on or upon in the following sentence? I remembered the story years later when I investigated the incident it was based on.
2
votes
3answers
4k views

“On which” or “upon which”

Today, I am writing technical documentation that instructs the user how to install software to a server. I encountered the following sentence and am unsure which is correct: When installing to a ...
2
votes
1answer
531 views

On or upon + gerund

Which preposition are we supposed to use - on or upon. i.e. "On/upon closing the door, set the alarm on."
3
votes
4answers
4k views

Do you need to use “on” or “upon” when referring to dates?

When defining a date, should I use on, upon or when, or can I leave these words out? For example, can I say: The date the company allots the securities is known as the Despatch Date. or should ...
4
votes
2answers
8k views

Which phrase is correct: “dependent on” or “dependent upon”

which sentence is correct? my project is dependent upon your project completing my project is dependent on your project completing.
2
votes
2answers
4k views

“The influence of … on/upon …”

I always have a hard time with the use of on and upon. I have looked at the general comments made in this question, but have the following specific use case in mind that does not seem covered to me: ...