have maintained

Present perfect conjugation of maintain. There are other translations for this conjugation.

maintain

Commissioner, you have maintained your predecessor's commitment to recognising the importance of this initiative, and I thank you for that.	Señor Comisario, usted ha mantenido el compromiso de su predecesor de reconocer la importancia de esta iniciativa y le doy las gracias por ello.
But if you are involved in relationships in which you have maintained harmony by stifling these dimensions of your nature, you may find that certain bonds are no longer viable in your life.	Sin embargo, si se involucra en relaciones donde mantiene la armonía sofocando esta dimensión de su naturaleza, descubrirá que ciertos vínculos ya no son viables en su vida.
Mr Prodi, like previous speakers, I must congratulate you, as Mr Lipietz has just done, on your lucidity and your courage, as you have maintained your position.	Señor Prodi, al igual que los oradores anteriores, tengo que felicitarle, al igual que el Sr. Lipietz acaba de hacer, por su lucidez y valentía demostradas al mantener su postura.
We all, Commissioner, whilst saluting the way in which you have maintained your negotiating position, expect you to tell us that it is not indefinite - and neither is your patience.	Comisaria,si bien todos saludamos la forma en la que ha mantenido su posición negociadora, esperamos de usted que nos diga que ésta no va a prolongarse indefinidamente, al igual que tampoco su paciencia.
You have maintained your physique very well.	Te mantienes muy bien.
You have maintained the constitution’s architecture, and that is no doubt your most crucial achievement.	Usted ha mantenido la arquitectura de la Constitución y ese, sin duda, es su mayor logro.