What do we need to conjugate verbs in the perfect tense?

Question 1

What do we need to conjugate verbs in the perfect tense?

Answer 1

To conjugate verbs in the perfect tense we need the present tense form of sein/haben and the past participle (Partizip II).

Question 2

1. The past participle (Partizip II) is formed in the following ways:

Answer 2

Regular Verbs also known as weak verbs (schwache Verben) form the past participle with ge…t and the verb stem.
Example: lernen – gelernt

Question 3

2. The past participle (Partizip II) is formed in the following ways;

Answer 3

Irregular verbs are verbs that change their verb stem in the simple past and/or the participle form. There are two kinds of irregular verbs in German grammar: strong verbs (starke Verben) and mixed verbs (gemischte Verben).

Strong Verbs form the past particple with ge…en.
Example: sehen – gesehen (sehen-sah-gesehen)
gehen – gegangen (gehen-ging-gegangen)

Mixed Verbs form the past participle with ge…t.
Example: haben – gehabt (haben-hatte-gehabt)
bringen – gebracht (bringen-brachte-gebracht)