he is a person
He is an aggressive person.
He is an important person.
Él es una persona extremadamente importante.
He is an extremely important person.
Él es una persona muy agradable.
He is a very nice person.
Él es una persona sencilla y modesta.
He is a simple and modest person.
Por lo que yo sé, él es una persona que mantiene su promesa.
As far as I know, he is a person who keeps his promises.
He is a lovely person.
Él es una persona importante en el FBI.
He is an important person in the FBI.
Él es una persona sumamente importante.
He is an extremely important person.