Simple past or past perfect with by
21925
Why do people sometimes use the past perfect form of a verb when the past would suffice? (e.g. "you had mentioned")
137281
"Has" or "Have" with "Each"?
150189
past continuous or past simple
12613
How to use "had" correctly in a past perfect paragraph?
131914
Using "recently" with past simple
122876
Simple past tense vs. perfect past tense
136402
past tense and/or conditional
96368
Simple Past vs. Present Perfect
64898
Future Simple and Future Perfect
90347
Is there difference between "by then" and "until then"?
8497
When is the past perfect exactly needed?
82982
past simple vs past perfect
102159
“Has been” vs. “was”
10955
Past simple vs present perfect
1030
"Now is the time" followed by past tense verb
7226
When to use 'by' instead of 'at' or 'on' to specify time/date?
98035
When do I use "was" and when do I use "were"