Complex Structures Review

Congratulations — you have now covered some of the most challenging structures in German grammar. This final lesson brings together everything from the course: Konjunktiv I and II, reported speech, passive voice, subordinate clauses, infinitive clauses, and extended adjective constructions. Use this lesson as a comprehensive revision guide and reference.

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Konjunktiv I: Key Points

Topic	Summary
Formation	Infinitive stem + endings (-e, -est, -e, -en, -et, -en)
No stem changes	Even strong verbs: er fahre (not fähre), er gebe (not gibe)
sein	All forms distinct: ich sei, du seist, er sei, wir seien, ihr seiet, sie seien
Primary use	Reported speech (indirekte Rede) in formal writing
Replacement rule	When Konjunktiv I = indicative, use Konjunktiv II instead

Quick Formation Examples

Infinitive	er/sie/es (Konjunktiv I)
haben	habe
sein	sei
kommen	komme
geben	gebe
können	könne
müssen	müsse
werden	werde

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Konjunktiv II: Key Points