Wh-signs can be used in non-interrogative contexts when they introduce temporal clauses (SYNTAX 3.5.2) locative clauses (SYNTAX 3.5.3), manner clauses (SYNTAX 3.5.4), and reason clauses (SYNTAX 3.5.5).
Notice the sign glossed as why is identical in its manual parameters to the sign glossed as reason, which typically introduces reason clauses. However, the two signs differ in terms of absence/presence of specific non-manuals (SYNTAX 3.5.5).
Chiara Branchini & Lara Mantovan
© 2020 Chiara Branchini, Chiara Calderone, Carlo Cecchetto, Alessandra Checchetto, Elena Fornasiero, Lara Mantovan & Mirko Santoro
The entire grammar:
Branchini, Chiara and Lara Mantovan (eds.). 2020. A Grammar of Italian Sign Language (LIS). 1st ed. (SIGN-HUB Sign Language Grammar Series). (http://sign-hub.eu/grammars/...) (Accessed 31-10-2021)
A Chapter:
Smith, Mary. 2020. Syntax: 3. Coordination and Subordination. In Branchini, Chiara and Lara Mantovan (eds.), A Grammar of Italian Sign Language (LIS). 1st ed. (SIGN-HUB Sign Language Grammar Series), 230-237. ((http://sign-hub.eu/grammars/...) (Accessed 31-10-2021)
A Section:
Smith, Mary. 2020. Phonology: 1.1.1.2. Finger configuration. In Mary, Smith, Ben Smith and Carlo Smith (eds.), A Grammar of Catalan Sign Language (LSC). 1st ed. (SIGN-HUB Sign Language Grammar Series), 230-237. (http://sign-hub.eu/grammars/...) (Accessed 31-10-2021)
Smith, Mary. 2020. Syntax: 3.1.2.1.3. Manual markers in disjunctive coordination. In Mary, Smith, Ben Smith and Carlo Smith (eds.), A Grammar of Catalan Sign Language (LSC). 1st edn. (SIGN-HUB Sign Language Grammar Series), 230-237. (http://sign-hub.eu/grammars/...) (Accessed 31-10-2021)
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant Agreement No 693349.