2014-10-17 Workshop: balloon story corrections

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http://www.pastebin.com/u/gmalivuk
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upset
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last Sunday / next Sunday = the Sunday before or after NOW
(some people disagree about exactly which Sunday it means; tell the date if you think it will be unclear)

the previous Sunday / the next Sunday
		(or: the following Sunday)
 = the Sunday before or after another time

on Sunday (not 'in' or 'at')
last Sunday / next Sunday (don't use a preposition)
(also no preposition when you talk about the day or time now)
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three days ago = three days before now
in three days = three days after now = three days from now

If it's less than three days, we probably use something else:
-2 the day before yesterday
-1 yesterday
 0 today
+1 tomorrow
+2 the day after tomorrow

three days before = three days before another time
 = three days earlier

three days after ___ = three days after another time
 = three days later

I ate breakfast before I came here.
I have eaten this before. (we understand = "before now")
I'll eat dinner after I go home.
* I'll eat dinner after. (after what? this is kind of WRONG)

Before, I didn't know what I was eating. (OK = "before now")
* After, he flew in his chair. (WRONG = after what?)
OK: After that,...
OK: Afterwards,...
OK: After he filled the balloons,...
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perfect: [have] + past participle
 = something happened before another time (or before now)

On the morning of March 12, he filled all of the balloons that he had bought the previous day.
While he was filling the balloons, his neighbors came to see.

I hope to have checked your writing before Monday's class.