SHALL

(CERTAINLY WILL) [auxiliary verb] [+ infinitive without to] he/she/it shall, [past simple] should - used to say that something certainly will or must happen, or that you are determined that something will happenDon't worry, I shall be there to meet the train.I'm determined that she shall not be allowed to suffer.(formal) The school rules state that no child shall be allowed out of the school during the day, unless accompanied by an adult.You shall (= I promise that you will) go to the ball, Cinderella.