It is not entirely certain how to distinguish between a verbal and a non-verbal construction for 'fear' constructions. The decision here was based on the form of the expression, "verbal" frait vs. 'adjectival" fraiten, but this may have been influenced by the lexifer. In any case the experiencer is consistently in subject position.
Source: Sandefur and Sandefur 1982: 63
Source: Angelo et al. 1998