concerner conjugation

Je concerne la réservation pour le dîner de samedi.

I'm about the reservation for Saturday's dinner.

J’ai concerné la facture d’électricité reçue lundi.

I was concerned about the electricity bill received on Monday.

Je concernais le loyer de l’appartement au-dessus de la boulangerie.

I was concerned about the rent of the apartment above the bakery.

Je concernerai la prochaine réunion à la mairie.

I will concern the next meeting at the town hall.