Is it necessary to use past perfect tenses with words like "before" or "after"?
141621
"She never saw a bear before she moved to Alaska." Why incorrect?
91575
Past simple vs past perfect; British- vs American English
128030
Past Simple or Present Perfect with "Never"?
21041
past simple or past perfect why
85473
Past participle used as a noun?
22902
Difference in meaning and use of future perfect forms
106901
What word type is "before" when used as in this example?
12613
How to use "had" correctly in a past perfect paragraph?
53495
Why is 'present perfect' present if it happened in the past? And why is it 'perfect'?
57204
present perfect vs past perfect
69668
Do 'already' and 'just' require the present perfect?
79159
Proper usage of the word since
10955
Past simple vs present perfect
118206
Simple past vs. past perfect
128296
mixed tenses/tenses agreement
96368
Simple Past vs. Present Perfect
60477
Is the past tense correct in "Did you know Fred was a doctor?"