Your sentence
se+souvenir+de
Words in this sentence
se
The third-person reflexive and reciprocal direct and indirect object pronoun.; himself; herself; oneself; itself; themselves; each other; The second-person plural reflexive and reciprocal direct and indirect object pronoun.
Pronoun
de
from (used to indicate origin); of (indicates possession, association or relationship); of (used to indicate cause); of (indicates an amount); used attributively, often translated into English as a compound word; from (used to indicate the start of a time or range); by (an amount); introduces the indirect object of some verbs; variously translated in English; used before infinitive phrases; often corresponding to an English to-infinitive or gerund; after certain verbs; …
Preposition