One common non-manual marker used in reason clauses is head thrust. Other non-manual markers such as furrowed eyebrows and raised eyebrows sometimes accompany the reason clauses.
fe
[very tıred for_thıs_reason] ıx1 home return
‘I went home because I was tired.’
As shown in the example above, furrowed eyebrows spreads from the beginning of the reason clause and its spreading domain contains the subordinating morpheme for_this_reason. Thus, both for_thıs_reason and the furrowed eyebrows mark the end of the reason clause.
h-th
fe
[washıng machıne very old for] break
‘The washing machine was broken since it was very old.’
The common non-manual marker head thrust at the end of the subordinate clause accompanies the manual sign for. In the example above, furrowed eyebrows is also observed partially on the subordinate clause.