Present perfect x past simple
Present perfect and past simple
The past simple tense
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The present perfect tense
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The past simple tense may describe completed activities and past situations
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The present perfect tense may describe activities or situations which began in the past and are still continuing
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The past simple may describe activities without linking them to the present
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The present perfect may describe completed activities whose impact is felt in the present
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With past simple verbs, the time may be specified
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With present perfect verbs, indefinite time expressions may be used
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the other day
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§ up to now
§ until now / till now
§ ever / never
§ (not) yet
§ so far
§ lately / recently
§ since
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