Translation of "Congresses" in Spanish

Seminars, congresses, memorials

seminarios, congresos, memoriales

Esperanto congresses are very useful.

Los congresos esperantistas son muy útiles.

And I have been speaking at 5 congresses,

Y he hablado en 5 congresos,

Organizes international congresses. In short, it is very important

organiza congresos internacionales. En resumen, es muy importante.