Tenses

Question 1

perfekt

Answer 1

Nomi+haben/sein+dative+akkusative+partizip 2

-action complete
-near past
<48h

Question 2

Prätertung

Answer 2

Nomi+2nd form verb+dativ+akkusativ

-simple past
-continuous action or donot have action
-action incomplete

Question 3

Infinitiv mit zu

Answer 3

First clause, um …. zu + verb

Question 4

Past perfect tense

Answer 4

-action completed>48h
Nomi+ hatten/waren +dativ+akkus+ 3rd form verb