Perfect Tense Formation

Question 1

When to use sein for perfect tense?

Answer 1

with verbs of movement or change of status

Question 2

how to form regular verbs in perfect tense

Answer 2

(prefix+) ge + verb stem + (e) t

Question 3

how to form regular verbs ending in -ieren in perfect tense?

Answer 3

verb stem + t

Question 4

How to form irregular verbs in perfect tense?

Answer 4

(prefix+) ge + verb stem + en

Question 5

how to form mixed verbs in perfect tense?

Answer 5

ge + verb stem with vowel change + t