excuser conjugation

J’excuse le retard de cinq minutes au rendez-vous.

I apologize for the five-minute delay at the appointment.

J’ai excusé le retard du livre rendu à la bibliothèque.

I apologized for the delay in the book returned to the library.

J’excusais souvent les retards de bus le matin.

I often apologized for bus delays in the morning.

J’excuserai le retard du train à la réunion demain.

I will apologize for the delay of the train to the meeting tomorrow.