allege

V. To say, declare, or charge that something is true even though it isn't proved yet.

alleged

Adj.

The accused is alleged to have plotted to kill the queen.

allegedly

Adv.

His car allegedly struck and killed the pedestrian.

allegation

N. A statement or claim that is made and hasn't been proved to be true or false.

Allegations of brutality and theft have been levelled at the Army.