Words used in this Zoning Ordinance in the present tense shall be interpreted to include the future tense; words used in the singular number include the plural number, and the plural number includes the singular number. The word "shall" is mandatory and not directory. The word "structure" includes the word "building". The masculine gender includes the feminine and neuter genders, and vice-versa. (Ord. 2696-95. Passed 1-4-95.)