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Das Present Perfect und die einfache Vergangenheit
To talk about something that has a present result
(Um über etwas zu berichten, das eine Auswirkung auf die Gegenwart hat) e.g.: Prices have increased by 2% this year.
To talk about when something that is still happening started (using since) (Um darüber zu berichten, wann etwas, das weiter andauert, begann)
e.g.: We have been in business since 1975
To talk about an event which is happening for the first time (Um über etwas zu berichten, das zum ersten Mal geschieht)
e.g.: This is the first time we have attended the fair in Paris
To talk about something that happened at a specific time in the past
(um über etwas zu berichten, das zu einem bestimmten Zeitpunkt in der Vergangenheit geschah) _______________________
Graham Language Services
e.g.: I went to Cologne last week.
Exercise – Present perfect vs. simple past
Choose the correct form of the verbs in italics
1 Maria called / has called Peter on Tuesday
2 I bought / have bought a new computer last week
3 Did you prepare / Have you prepared the meeting yet?
4 The market grew / has grown by 20 % in the last five years
5 Peter lived / has lived in Buenos Aires for five years but now he lives in Atlanta 6 Our customers were / have always been important to us – and they still are