Questions about the use of whitespace characters

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105
votes
4answers
10k views

Why is “cannot” spelled as one word?

Why is “cannot” spelled as one word whereas other similar constructions such as “do not,” “will not,” “shall not,” “may not” and “must not” are spelled as two words (unless they are contracted as ...
19
votes
3answers
7k views

“Time zone” vs. “Timezone”

My spell checker shows that both "time zone" and "timezone" are correctly spelled. Which one of these is the correct one to use?
25
votes
3answers
40k views

Should there be a space before a percent sign?

Should there be a space before a percent sign or not? Should you write 20% or 20 %? I'm not sure if there is any consensus about this or not. Is one way more common than the other?
200
votes
15answers
28k views

How many spaces should come after a period/full stop?

In the past — or at least, when I was in elementary school — periods/full stops were followed by two spaces. Lately, it's become more and more common to see just one space. In the modern ...
15
votes
6answers
20k views

Should I write “comma/period” or “comma / period”?

I usually put a space before, and after / when indicating alternatives, such as in the following sentence. We review a module / theme per user. Is it correct, or should I re-write the sentence ...