Se comprometen á sí (á sí mismos—emphatic): They commit themselves.
Se comprometen el uno al ótro, or los unos á los otros: They commit each other.
A Reflexive verb is that in which the second pronoun of the same person as the subject, is the direct object of the action, as—
Ellos se comprometen: They commit themselves.
But when the second pronoun stands for the indirect object, the verb is only intransitive pronominal, as—
Él se procuró un empleo: He procured for himself an employment.
=The Passive Voice=.
The Passive voice formed with ser occurs much less in Spanish than in
English.
When the "doer" is not expressed the active voice with se generally takes its place, as—
Los niños se aman or Se ama[189] á los niños: Children are loved.