Verb + de someone or something
se souvenir
de
The constructions
dese souvenir de quelque chose
Meaning : to remember something
Je me souviens de mon premier jour à Paris.
Do not writeJe me souviens mon premier jour à Paris.
dese souvenir de + infinitif
Meaning : to remember doing
Tu te souviens d'avoir fermé la porte ?
Why
Se souvenir de takes de throughout, and en replaces it: je m'en souviens. Its synonym se rappeler is DIRECT: je me rappelle mon premier jour, je me le rappelle. Two verbs, same meaning, two constructions, and it is one of the most frequent mix-ups, among native speakers too.
Read the full lesson : Prepositions: place, time, and verb + à, de or infinitive →