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"Upon" is a preposition which is often translated as "en", and "call on" is a transitive verb phrase which is often translated as "recurrir". Learn more about the difference between "upon" and "call on" below.
upon(
uh
-
pan
)A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
call on(
kal
an
)A transitive verb phrase is a phrase that combines a verb with a preposition or other particle and requires a direct object (e.g., take out the trash.).
a. recurrir
I'm lucky to have such good friends I can call on if I get myself in a jam.Soy afortunado de tener buenos amigos a quienes puedo recurrir si me meto en un aprieto.
b. apelar (formal)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
The principal has called on teachers to use a more holistic approach to teaching their students.La directora ha apelado a los profesores para que usen un enfoque más holístico al enseñar a sus alumnos.
2. (to visit)
a. visitar
I should like to call on you tomorrow afternoon if you're free.Me gustaría visitarte mañana por la tarde si estás libre.
b. pasar a ver
Russell is planning on calling on us when he's in town for the weekend.Russell está planeado pasar a vernos cuando esté por aquí el fin de semana.
a. pasar la palabra
Every time the teacher calls on Dan, he knows how to answer.Cada vez que la maestra le pasa la palabra a Dan, él sabe cómo responder.
