Questions & Answers about Nachdem ich ihn verwechselt hatte, war es mir peinlich.
Why does this sentence use the dative mir with peinlich instead of saying für mich (for me)?
In German, many adjectives describing personal feelings or reactions take a direct Dative object to show who is affected. While English says 'embarrassing for me', German skips the preposition and uses the Dative pronoun: es war mir peinlich (literally 'it was to me embarrassing').
Why is the verb hatte verwechselt (had mixed up) used instead of just habe verwechselt?
This is the Past Perfect tense (Plusquamperfekt). Because the sentence uses nachdem (after) to describe an event in the past, the action in the nachdem clause must happen before the action in the main clause (war). You use hatte plus the past participle to show it happened further back in time.
Why does the second half of the sentence start with the verb war (war es mir peinlich)?
The entire first half of the sentence (Nachdem ich ihn verwechselt hatte) acts as position one. Because German main clauses strictly require the conjugated verb in position two, the verb war must come immediately after the comma. The subject es is then pushed to position three.
Does ihn verwechselt mean that I made him feel confused?