In ASL, how can information about time be expressed?

In American Sign Language (ASL), information about time is effectively expressed using the space in front of the signer. This spatial representation allows the signer to establish a timeline, where the past, present, and future can be indicated through specific locations in that space. For example, signs made to the left may refer to the past, while signs made to the right may refer to the future, and signs directly in front represent the present. This method of using visual space to convey temporal context is fundamental to ASL grammar and enriches the communication by providing clarity about when an event occurs.

The other options do not effectively convey temporal information in ASL. Changes in vocal tone are irrelevant in a visual language like ASL, where sound is absent. Altering hand shapes can change the meaning of a sign but does not indicate time directly. Gesturing dramatically may enhance expression but does not provide a systematic way to communicate time. Therefore, using the space in front of the signer is the most accurate and effective method for expressing temporal information in ASL.