German Present Perfect Tense

Perfect Past Tense is used mostly in written language

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You should use „haben“ when referring to verbs with an accusative object

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When using Regelmäßig (Regular), you take the third person singular ending and add ge-

Example: Machen -> Gemacht

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Kaufen in PP is

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Answer explanation

It is Regelmäßig, so you use the 3rd person singular ending and add ge-

Arbeiten in PP is

(a)  

Answer explanation

It is Regelmäßig, so you use the 3rd person singular ending and add ge-

When the verb ends in -ieren, you only need to turn it into 3rd person singular to make it Partizip II

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The PP of Telefonieren ist

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Answer explanation

Since it ends in -ieren, you only make it 3rd person singular

The PP of Studieren is

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Answer explanation

Since it ends in -ieren, you only make it 3rd person singular

With all irregular verbs, you only add a ge- to the beginning

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Answer explanation

With SOME irregular verbs, you may also need to change the vowel aswell.

Example: Singen -> Gesungen

PP of Sehen

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Answer explanation

It is irregulär and, in this case, all you need to do is add ge-