Conditional tenses in German are used to express situations that are hypothetical, unreal, or dependent on a condition. The main tool for this is the Konjunktiv II, which can be used both in the present and past to convey “would,” “could,” or “should” in imaginative or speculative contexts.
Konjunktiv II is used for hypothetical and unreal situations.
Konjunktiv II is not used for factual statements.
'Wenn' is a typical marker for conditionals.