2((正式・やや古))[二人称主語： you shall][話し手の意志] …させよう, …することになろう‖You shall have a new bicycle for your birthday. 誕生日には新しい自転車をあげよう(＝(I promise that) I will give you a new bicycle ...)/If you are late again, you shall be dismissed. もう一度遅刻したら首だぞ(If ..., I'll dismiss you.).