past perfect with before
8497
When is the past perfect exactly needed?
3233
When to use the present or the past perfect tense?
23177
Tense change: previous actions on something that's currently true
14620
How to correctly use the present perfect tense
49354
Is 'had have + past participle' a correct grammatical form?
57204
present perfect vs past perfect
107985
Had done / had been doing
46474
Postpositions in English and "ago"
97441
Present perfect or simple past?
63386
American dialects: Replacing the past-perfect participle with the simple-past form
121482
Commas before and after therefore?
131914
Using "recently" with past simple
104764
Use of Past Simple vs Past perfect in sentences with since
151751
How to distinguish "two previous" from"previous two"?
143121
What's the difference between an adjective and a past participle?
96368
Simple Past vs. Present Perfect
152550
present tense with past perfect?