Never
One of the basic elements of Always is the property of Never. Never is a necessity of the Universe, it has always been, and shall always be. Without being a part of Always, never, as a concept, could never exist. Where could Never come from if it never existed? Therefore, never must be a part of Always, since it obviously is a concept that does exist and is simple enough to understand.
Another way of looking at Never is that if never were to become the prevailing essence of Always, Always would persist in such a state.