hayan envenenado
-they/you have poisoned
Antepresente de subjuntivo para el sujeto ellos/ellas/ustedes del verbo envenenar.

envenenar

¿Tú crees que lo hayan envenenado?
Do you think maybe he was poisoned?
Quizá le hayan envenenado.
He may have been poisoned.
Palabra del día
la rebaja