I didn't phone Peter this morning / I haven't phoned Peter this morning
14620
How to correctly use the present perfect tense
158256
"The service is temporarily unavailable" vs. "...not available"
34503
"What day is it today?" vs. "What day is today?"
95245
When should I use "didn't" instead of "haven't"?
87725
Question history attributed changes to me that I didn't make
88016
Don't tell me you're "hiding questions" when there are none to begin with
16897
Ambiguity in Negation: "John did not come because of the rain"
111455
When can we omit the preposition "on" before weekdays
87651
I'm being corrected "I had a headache yesterday" vs "I have had a headache yesterday"
16223
can "not" substitute a negative independent clause
152145
Should yes/no dialogs also have a cancel?
42843
What are the differences between "seems not" and "doesn't seem"?
52015
Is "Me neither" incorrect?
125234
Contacting someone unannounced via chat
76897
Using do not and don't (I do not think of it)
36056
Leave something vs. forget something
125926
How can I list cancelled/declined meetings?