"used to be" with a fact
55153
Problem with backshift in reporting clauses
54114
When should one use the "recent past"? How much time should have passed?
138033
whether it be vs whether it is
101877
Assumed True until proven False. The Curious Case of the Vacuous Truth
128120
"Has been" vs "was"
118890
The doctrine I believed "to be" or "is" or "was" right
55834
"is being" vs "has been"
122732
Equivalent of "former" and "latter" for more than 2 items
75699
"Would" & " Used to"
58714
Simple Past vs. Present Perfect: "was" vs. "has been"
71690
"Is" vs "has been" in English
142852
Is "proven" very old -fashioned?
143589
How do we use zero conditional and first conditional to talk about things in the past
72276
Have gone or Have been
152805
Using have gone to / been to / been in
156031
When a sentence includes a word like 'today' that indicates present time, can a past form of verb be used?
60477
Is the past tense correct in "Did you know Fred was a doctor?"