Is there any difference between "since when did it become..." and "since when has it become..."?
40495
What's the difference between "has been living" and "has lived"?
81802
Can we interchange phrases " What's the date today?" and "what day is it today?"
2182
vs. . Which to use?
143121
What's the difference between an adjective and a past participle?
116929
Past Simple vs. Past Progressive
61232
When is this vs. when this is
29553
A number of questions "has been" or "have been" asked?
34503
"What day is it today?" vs. "What day is today?"
16625
"... that had stopped half an hour ago" VS " ... that had stopped half an hour before/earlier"
80268
Past participle vs being+past participle
152400
"at which time" vs. "at what time"
33549
"Which" vs. "what" — what's the difference and when should you use one or the other?
557
Should I use the past tense with did?
4107
Difference between "I have got" and "I have gotten"
20656
Difference between (in / for / ∅ / during / over) the (past / last) three years
49364
"In recent years" vs "in the recent years"
102159
“Has been” vs. “was”