Breakdown of Als ich mein Studium abgeschlossen habe, bin ich umgezogen.
ich
I
sein
to be
haben
to have
mein
my
Questions & Answers about Als ich mein Studium abgeschlossen habe, bin ich umgezogen.
Why do we use Als for "when" here instead of Wann or Wenn?
In German, als is used specifically for a single event or a block of time in the past (like finishing your studies). Wann is only used for asking questions, and wenn is used for the present, the future, or for repeated events in the past (meaning "whenever").
Why is habe at the very end of the first clause?
Because als is a subordinating conjunction. These words always kick the conjugated verb (in this case, habe) to the very end of their clause. The past participle (abgeschlossen) stays right in front of it.
Why does the second half of the sentence say bin ich instead of ich bin?
In a German main clause, the conjugated verb must be in the second position. Here, the entire als clause counts as the first position. Because of that, the verb bin must come immediately after the comma to take position two, pushing the subject ich right after it.
Why do we say bin ... umgezogen instead of habe ... umgezogen?
The verb umziehen (to move or relocate) describes a physical change of location. In the spoken past tense (Perfekt), German verbs that show a change of location or state use forms of sein (to be) as their helping verb instead of haben (to have).