PRESENT PERFECT SINCE FOR

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I haven't seen them ...... ages

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for

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I have been living here ...... July

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since

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He's worked there ....... several years

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for

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I haven't seen him ...... last week

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since

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It's been a long time ....... I've had such a good meal in a restaurant

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since

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He hasn't been able to work ...... the last three weeks

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for

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They've known about it ...... a long time

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For

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He hasn't worked this hard ..... he was at school

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since

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I haven't seen her ..... a fortnight

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for

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They haven't been here ..... 1993

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since