Se côtoyer is a french first group verb. So it follow the regular conjugation pattern of the first group like:
aimer.
Follow this link to see all the endings of the conjugation of the first group verbs :
conjugation rules and endings for the first group verbs.
However, although the terminations are perfectly regular, stem can be irregular and have numerous variations.
Se côtoyer is conjugated the same way that verbs that end in :
-yer.
Verbs ending in
-yer may transform the stem letter
« y » in
« i » before a silent endings.
It is the case for verbs ending in
-oyer and
-uyer (other than envoyer and renvoyer). They replace the
« y » with an
« i » before an unpronounced
« e », turning the preceding syllable in a diphthong. The prototypical verbs are broyer, noyer, ennuyer.
The verb
se côtoyer is the reflexive form of verb
côtoyer. In grammar, a reflexive verb is, loosely, a verb whose direct object is the same as its subject, for example, "I wash myself". More generally, a reflexive verb has the same semantic agent and patient (typically represented syntactically by the subject and the direct object) are the same. For example, the English verb to perjure is reflexive, since one can only perjure oneself. In a wider sense, the term refers to any verb form whose grammatical object is a reflexive pronoun, regardless of semantics; such verbs are also referred to as pronominal verbs, especially in grammars of the Romance languages. A reflexive verb is always conjugated with a reflexive pronoun. Here is the list of the french reflexive pronouns:
« me »,
« te »,
« se »,
« nous »,
« vous »,
« se ».