The present perfect with 'for' and 'since' Comparatives and superlatives The present perfect with ‘just’, ‘already’ and ‘yet’ Defining relative clauses 'May', 'might' and 'could' 'Used to' Subject ...
The negative present perfect is made with subject + have/has not + past participle. I haven't seen the first Bond film. I haven't seen the first Bond film.
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