13 Present perfect and past 1 (I have done and I did)
The present perfect (something has happened) is a present tense. It tells us about the situation now. 'Tom has lost his key' = he doesn't have his key now ...
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The present perfect (something has happened) is a present tense. It tells us about the situation now. 'Tom has lost his key' = he doesn't have his key now ...
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