French phrase
Je confirme que ~.
Meaning
I confirm that ___.
When to use it
Formally confirms a fact or arrangement. Common in business; polite and slightly formal.
Example dialogue
Le rendez-vous est-il bien à 15h ?
Is the meeting at 3:00 p.m.?
Je confirme que le rendez-vous est à 15h.
I confirm that the meeting is at 3:00 p.m.