When you are first learning ASL, you want to be really familiar with this sign. As you are learning the language, there’s bound to be signs that you don’t understand or moments when you are lost in translation. Similar to KNOW, being familiar with this sign will help you convey whether you’re able to follow along or not.
This sign is indeed a complete sentence. Depending on what facial expression you are showing, you can completely say, “I do understand.” or “I do not understand.”
If you're looking to learn more sign language, check out our other ASL resources. We constantly update these resources to provide you with useful new signs you can use in your day-to-day life.