How necessary is using the perfect past in the given sentences?
8497
When is the past perfect exactly needed?
20928
Present Perfect with the word "ago"?
153477
Present Perfect Usage of "Think" for Recent Past
48737
Using “used to” vs "would" when expressing something done in the past
68478
The use of "were- should- had” at the beginning of sentences instead of “if”
47662
Present perfect for past action with present effect
6542
Dilemma: Present Perfect Or Perfect Continuous?
49020
Is past simple ever justified with 'by'?
27613
Past Perfect Continuous/Past Perfect or?
118206
Simple past vs. past perfect
96368
Simple Past vs. Present Perfect
61173
Meaning of 'should have' in sentences
28026
Can we use "Now" (not until now or until then) in past tense sentences
27736
Why is the present perfect used in headlines?
66188
Mixing past tenses in the same sentence
65426
Difference between Simple Past and Past Perfect
49302
before/after + past or past perfect