‘AS’ + pronoun + ‘USED’ + to-infinitive

In the English Grammar Profile, C2 point 236 in the category of MODALITY is defined: ‘as’ + pronoun + ‘used to’ to add background to a narrative, often to highlight something unusual *Note this is not the “as + adjective + as” structure. Student example in a speaking test: I don’t think that they pay enough attention towards the national customs as they used to do those days. …

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Here’s an example of the preposition ‘after’ complemented by a non-finite perfect form of the passive ‘having been p.p.’ Roughly a month and a half after having been laid, the surviving eggs hatch. Listen In the English Grammar Profile, there are two similar C2 points in the category of passives: Point 38: non-finite ‘-ing’ perfect forms of the passive as the complement of prepositions. Point …

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had been + VERBing

Point 27 in the category of PAST is defined as: past perfect continuous: an action or event which began before a point in the past and was still continuing up to that point, often with ‘for’ or ‘since’, to give background information. Point 32 in the PAST is defined as: past perfect continuous: background action …

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