The basic structure of a sentence is subject-verb-object, with some variations depending on the complexity and tense of the information. In American Sign Language, there are four major lexical categories: nouns, predicates, adjectives, and adverbs. In American Sign Language, verb tenses are indicated as past, present, or future by an imaginary timeline located on the body, with the past located near the back, the present located near the front of the body, and the future extending further in front of the body. Time can also be signified by the direction of movement used for the sign, so that a past would be indicated by moving the sign backwards toward the body and the future would be indicated by moving the sign away from the body. The time is set by the signatory at the start of the