The Battle of Grand Gulf was fought on April 29, 1863, during th: For the expression of mood, English uses a number of modal auxiliaries, such as can, may, will, shall and the past tense forms could, might, would, should. There are also subjunctive and imperative moods, both based on the plain form of the verb (i.e. without the third person singular -s), for use in subordinate clauses (e.g. subjunctive: It is important that he run every day; imperative Run!).[202]