In the English Grammar Profile, B1 point 20 in the category of PAST is defined:
present perfect simple: UNFINISHED refer to a state or period of time which is unlimited or indefinite.
PELIC STUDENT EXAMPLE:
I have already gotten several wrong numbers this month.
Japanese female level 4 grammar class
EXPERT EXAMPLES:
It‘s been proven to me time and time again as people have walked up to me this week
simply because of what I‘m wearing, and we‘ve had great conversations.
The following examples are B2 because they are passive or contain modality, but they still contain unfinished periods: (today, this week, this year)
How many decisions have been made about you today, or this week or this year, by artificial intelligence?
West Antarctica may have crossed the tipping point already today.
This is too hard to locate automatically without overlapping other points in the EGP. 2 of the 3 examples in the EGP contain a time word after the present perfect form. A search in iWeb for:
_VH _VVN * * _NNT
However, many of these still refer to duration.
1 HAS CHANGED OVER THE YEARS 2915
2 HAS EVOLVED OVER THE YEARS 1882
3 HAVE CHANGED OVER THE YEARS 1833
4 HAS GROWN OVER THE YEARS 1182
5 HAVE LEARNED OVER THE YEARS 1002
6 ‘VE LEARNED OVER THE YEARS 847
7 HAS INCREASED IN RECENT YEARS 824
The latest figures show that the number of people smoking loose tobacco has increased in recent years
and this may be because it is cheaper than rolled cigarettes.
dublinpeople.com
8 HAVE EVOLVED OVER THE YEARS 733
9 ‘VE SEEN IN A WHILE 715
10 HAVE SPENT SO MUCH TIME 626
11 HAS CHANGED IN RECENT YEARS 563
12 HAS FALLEN ON HARD TIMES 556
13 HAVE KNOWN FOR SOME TIME 555
14 HAS GROWN IN RECENT YEARS 544
15 HAS DEVELOPED OVER THE YEARS 532
Newstead has developed over the years to become one of Brisbane’s hottest apartment markets.
16 HAS PROVEN TIME AND TIME 514
17 HAS TAKEN A LONG TIME 499
18 HAVE FALLEN ON HARD TIMES 472
19 HAVE USED IT FOR YEARS 464
20 HAS SPENT THE LAST YEAR 454
1 HAVE TAKEN THE TIME 3508
2 HAS CHANGED OVER TIME 2157
3 HAVE CHANGED OVER TIME 1817
4 HAS TAKEN THE TIME 1608
5 HAS SEEN BETTER DAYS 1412
6 HAVE SPENT MORE TIME 1360
7 HAVE SPENT SOME TIME 1304
8 HAS EVOLVED OVER TIME 1294
9 HAVE KNOWN FOR YEARS 1117
10 HAVE SAID MANY TIMES 984
11 ‘VE TAKEN THE TIME 981
12 HAVE EVOLVED OVER TIME 939
13 HAVE SPENT COUNTLESS HOURS 892
14 HAS SPENT MANY YEARS 856
15 HAD TAKEN THE TIME 787
16 ‘VE SPENT SOME TIME 785
17 ‘VE SAID MANY TIMES 755
18 HAVE USED FOR YEARS 730
19 HAVE SPENT MANY HOURS 701
20 ‘VE GOT THE TIME 627
1 HAVE SPENT TIME 3217
2 HAVE SPENT YEARS 2840
3 HAS SPENT TIME 2659
4 HAS SPENT YEARS 2551
5 HAVE LIMITED TIME 1955 (this is present simple)
6 HAVE SPENT HOURS 1801
7 HAD SPENT TIME 1114
8 ‘VE GOT TIME 1043
9 HAVE TAKEN TIME 997
10 ‘VE SPENT TIME 974
11 ‘VE SPENT YEARS 950
12 HAD SPENT YEARS 915
13 HAVING SPENT TIME 904
14 HAS TAKEN TIME 887
15 HAS SPENT DECADES 826
16 ‘VE SPENT HOURS 778
17 HAVE SPENT DECADES 606
18 HAVE SPENT MONTHS 601
19 HAS TAKEN YEARS 568
20 HAS PROVEN TIME 546
B1 vocabulary:
developed, increased, recent
EXPERT EXAMPLE:
I love calling COVID Rona as if this is a person
that has crashed our good time over the last year.