In American Sign Language (ASL), time markers can include various signs that indicate the timing of an action or event. Among the options you've provided, "CONTINUE" and "STOP" can serve as time markers, as they indicate ongoing or completed actions respectively. "FINISH" can also function similarly as it indicates the conclusion of an activity. However, "END" is not typically used as a standalone time marker in ASL.
So, the potential time markers in your list would be "CONTINUE," "STOP," and "FINISH." If you need to select only one, "FINISH" is often used explicitly to mark the end of an action or event.