Definition: ASL; ASL stands for American Sign Language
Gloss: PAST/BEFORE IX2 SCHOOL /\THAT(IX2)/\ START EVER-SINCE IX-me WANT++ to-WRITE #ASL.
English equivalent: Ever since I was at school, I've wanted to write ASL.
Raise eyebrows for the conditional clause and conjunction THAT. Normal eyebrow level for the clause after THAT START EVER-SINCE.
Maintain the same spatial reference for IX2 (a determiner for SCHOOL), SCHOOL, THAT, and START.
Intonation is used in this sentence.
Notice an inflection of the verb WANT (a different movement from the regular verb WANT), which means to show a desire for learning how to write ASL.