Was removed vs has been removed
1863
How do the tens­es and as­pects in English cor­re­spond tem­po­ral­ly to one an­oth­er?
139533
Have been Vs was/were
125890
Difference between "does have" and "has"
15721
"Is it proved that ...?" vs. "Has it been proven that ...?"
149443
Is "prefixed by" correct?
121795
What is the difference between 'past' and 'present perfect;?
3677
"Replace with" versus "replace by"
37239
What does "had had" mean? How does this differ from "had"?
29430
"He added" vs. "Did he add" (inversion after negative adverb)
151953
"No, I didn't see him" vs "Yes, I didn't see him"
128120
"Has been" vs "was"
97989
Which one is correct? "cancelled" or "canceled"
16625
"... that had stopped half an hour ago" VS " ... that had stopped half an hour before/earlier"
151634
Which one is correct? "has been taken already" or "has already been taken"
97065
Is "what happened is" correct?
47408
Difference between "been to" and "been in"
26716
Why does "is" replace "has"?