He confirme the appointment.

He confirms his attendance to the meeting.

The confirmer verified the information before sharing it.

The confirmability of the data is crucial for the validity of the research findings.

The confirmers have arrived for the meeting.

The test results were confirmative.

The confirmator verified the authenticity of the document.

The confirmance of the appointment was received via email.

The confirmators have approved the decision.

He comfortably completed the task ahead of schedule.