This is an irregular verb. It follows the conjugation pattern of the verb abrazar.
PresentPresente
La empresa realiza proyectos en varios países.
The company carries out projects in several countries.
PreteritePretérito indefinido
Los estudiantes realizaron un experimento en clase.
The students carried out an experiment in class.
FutureFuturo
El club realizará un torneo de tenis en julio.
The club will hold a tennis tournament in July.