past perfect or past simple after the conjunction 'since'
82982
past simple vs past perfect
99083
"Have had" versus "had"
49020
Is past simple ever justified with 'by'?
8497
When is the past perfect exactly needed?
23670
Present Perfect vs. Present Perfect Continuous
128030
Past Simple or Present Perfect with "Never"?
152550
present tense with past perfect?
78336
past simple or present perfect
68602
A case of optional “that”: “check the” vs. “check that the”
90371
"since ages" or "for ages"?
35695
Past perfect or past simple with before
12310
When is the present perfect tense used instead of the past tense?
49354
Is 'had have + past participle' a correct grammatical form?
1030
"Now is the time" followed by past tense verb
157375
Had been/have been... tenses agreement
104245
did + present tense (or ) Past tense of the verb
121482
Commas before and after therefore?