Present perfect or past perfect?
104764
Use of Past Simple vs Past perfect in sentences with since
43333
just(recently) + present perfect or simple past
8497
When is the past perfect exactly needed?
55792
Present Perfect vs Present perfect continuous
157375
Had been/have been... tenses agreement
16395
when to used had been and have been
99083
"Have had" versus "had"
35695
Past perfect or past simple with before
10637
difference between "Have been" and "was"
42961
Simple past or past perfect with "by" and years
73062
Must present perfect tense be used if the action takes place more than once?
153477
Present Perfect Usage of "Think" for Recent Past
40839
Difference between Present Perfect and Past Simple ( I am not a beginner )
122876
Simple past tense vs. perfect past tense
49025
Can the past simple or the present perfect fit in this example with yet
157640
Present Perfect: Yes or No?
6340
"yet" vs. "already" with present perfect