Breakdown of Ich verliere manchmal meinen Schlüssel im Haus.
in
in
das Haus
the house
ich
I
manchmal
sometimes
Questions & Answers about Ich verliere manchmal meinen Schlüssel im Haus.
Why is the possessive pronoun mein inflected to meinen in meinen Schlüssel?
Because Schlüssel is a masculine noun and here it’s the direct object of the verb. German uses the accusative case for direct objects. The masculine singular accusative ending on a possessive pronoun is -en, so mein becomes meinen.
In im Haus, why is im used instead of in dem or in das?
in is a two‑way preposition that takes either dative or accusative depending on context. Here it indicates a static location (where something happens), so it takes the dative. Haus is neuter, so dative singular is dem Haus. Germans contract in dem to im. Using the accusative (in das Haus) would imply movement into the house.
Why doesn’t the sentence use a preposition with verlieren, for example verliere an?
verlieren is a fully transitive verb that directly takes an object in the accusative. You simply lose something (ich verliere etwas). There’s no extra preposition needed, unlike some verbs (e.g., warten auf).
Why is manchmal placed between the verb and the object, and could it appear elsewhere?