Breakdown of Sie hat die Erfindung meines Opas verbessert.
sie
she
haben
to have
mein
my
der Opa
the grandpa
Questions & Answers about Sie hat die Erfindung meines Opas verbessert.
Why is it meines Opas instead of mein Opa?
This uses the genitive case to show possession (my grandpa's). Because Opa is a masculine noun, the possessive article mein takes the genitive ending -es to become meines, and the noun itself gets an -s added to the end.
Why does Opa only get an -s and not an -es at the end?
In the genitive case, masculine and neuter nouns add -s or -es. Nouns ending in a vowel, like Opa, or those with multiple syllables usually just take -s. The -es ending is mostly for short, one-syllable nouns like der Mann, which becomes des Mannes.
Can I put the possessive part first, like meines Opas Erfindung?
In modern everyday German, the genitive phrase almost always comes directly after the noun it describes. While putting it first was common in the past, today it sounds like old poetry. You should stick to die Erfindung meines Opas.
Why doesn't the past tense verb verbessert start with ge-?