Are You Making Common Signing Errors? Make no mistake about it... when venturing into the world of American Sign Language, the first thing you must understand is that ASL is its own language. It is different from English. ASL is also not like other Signing Systems. Like any other Language, ASL contains its own unique rules of syntax, phonology, grammar, etc. To become fluent in the ASL language, you must first be armed with these essential rules...