1. Definition 2. Grammar & Syntax 3. Vocabulary 4. Usage 5. Fluency & Community Perception Summary Chart Feature ASL PSE Type Full natural language Contact sign system Grammar ASL-based (topic-comment) English word order (somewhat) Vocabulary Unique signs, classifiers ASL signs with English structure Used by Deaf community Hearing learners, some Deaf users Fluency recognition Highly valued Seen as less fluent
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