may have + PAST PARTICIPLE
In the English Grammar Profile, B2 point 163 MODALITY is defined as: ‘may’ in phrases such as ‘as you may know’, or ‘as you may have’ + ‘-ed’ to focus the reader on shared knowledge. This partly overlaps point 168 MODALITY and PAST AFFIRMATIVE of ‘may have’ + ‘-ed’ to talk about possibility in the […]
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