comenzó

third-person singular preterite indicative of comenzar

actuando

gerund of actuar

en

1. in, at, on
2. in (a time)
3. in (a language)
4. used after some verbs and translated by various prepositions in English
5. in (in various expressions)

Fontana

a surname

California

1. California (a state of the United States)
2. A town in the Usulután department, El Salvador