Breakdown of Le monde a changé en l'espace d'une décennie.
une
a / an (feminine)
avoir
to have
le monde
the world
changer
to change
Questions & Answers about Le monde a changé en l'espace d'une décennie.
How does en l'espace de differ from just using en for time?
Could I use the word décade instead of décennie for "decade"?
Why does changer use avoir as its auxiliary verb here? Isn't it a verb of state or change?
Unlike some verbs of transformation or state change (such as devenir or mourir) which require être, the verb changer almost always takes avoir in the compound past tenses. This is true whether it has a direct object or, as in this sentence, it is just the subject changing intrinsically.
Can I use en l'espace de to talk about physical space, like "in the space of the room"?