Here's how it works:
1. Identify the verb: For example, "You are happy." The verb is "happy."
2. Sign the verb: Sign "happy" using the standard ASL sign for "happy."
3. Add the "are" meaning: You do this by signing "happy" with a specific movement and facial expression that implies "are." This usually involves holding the sign for a moment and nodding your head slightly.
Example:
To sign "You are happy," you would:
1. Sign "happy" with the appropriate handshape and movement.
2. Hold the sign for a moment, nodding your head slightly to indicate "are."
In short: There's no single sign for "are" in ASL. The meaning is implied by the verb sign and context.