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Results tagged with present-perfect-progressive
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user 42438
0
votes
1
answer
97
views
connotation difference between "have debated" and "have been debating"
It is said that the present perfect continuous tense is used to:
describe the duration of an ongoing action;
emphasize the effect of a recent action on the present.
However, I have also seen the pre …
- 141
0
votes
1
answer
72
views
present perfect with "for": For almost a century, researchers have argued over this question
How do the meanings of the following sentences differ:
For almost a century, researchers have argued over this question.
For almost a century, researchers have been arguing over this question.
I u …
- 141