Breakdown of Il y avait de l'électricité chez mon grand-père.
chez
at the home of / at
de
of / from / any (in negative sentences) / about (concerning)
mon
my (mon, ma, mes)
le grand-père
the grandfather
Questions & Answers about Il y avait de l'électricité chez mon grand-père.
How does il y a become il y avait here?
Il y a means "there is" or "there are". To say "there was" or "there were", we change the verb a (from avoir, to have) into the imperfect tense, which gives us avait. We use the imperfect here because we are describing an ongoing past situation or setting the scene.
If there were multiple things, would il y avait become plural?
Why do we need de l' before électricité?
Why does chez mon grand-père translate to "at my grandfather's house"?
The preposition chez translates roughly to "at the home of" or "at the place of" when used with a person. You don't need the French word for "house" (maison) at all! It can also be used for businesses, like chez le dentiste (at the dentist's office).