query: Past Progressive or Past Perfect Progressive?
positive_passages.docid: 18312
positive_passages.text: When is using the past perfect tense not necessary?
negative_passages.docid: 13947
negative_passages.text: Simple past or present perfect?
negative_passages.docid: 152550
negative_passages.text: present tense with past perfect?
negative_passages.docid: 22902
negative_passages.text: Difference in meaning and use of future perfect forms
negative_passages.docid: 143121
negative_passages.text: What's the difference between an adjective and a past participle?
negative_passages.docid: 127184
negative_passages.text: Present-perfect-tense vs. Simple-past-tense
negative_passages.docid: 94293
negative_passages.text: Past perfect or simple past with 'ago'?
negative_passages.docid: 77010
negative_passages.text: 'was' versus 'had been'
negative_passages.docid: 85473
negative_passages.text: Past participle used as a noun?
negative_passages.docid: 43333
negative_passages.text: just(recently) + present perfect or simple past
negative_passages.docid: 153098
negative_passages.text: Aspect (simple, perfect and progressive): What are the differences?
negative_passages.docid: 68459
negative_passages.text: to be + past participle
negative_passages.docid: 119517
negative_passages.text: What's the difference between the simple past tense and the present perfect?
negative_passages.docid: 40839
negative_passages.text: Difference between Present Perfect and Past Simple ( I am not a beginner )
negative_passages.docid: 123263
negative_passages.text: "Now" vs "by now"
negative_passages.docid: 24744
negative_passages.text: The habitual past "would" versus "simple past" tense
negative_passages.docid: 104764
negative_passages.text: Use of Past Simple vs Past perfect in sentences with since