Well, I found this question interesting and hard to answer. I did quite a bit of research on it. I consulted several complete lists of catenative verbs, and I read a great deal of information on them.
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AnonymousMy opinion is that it is a catenative construction.I don't suppose there is much harm in calling it a catenative construction, but the idea that it's the passive form of a sentence in which something is predicated of its object is also attractive as an analysis. A good place to look for more of these is in Beth Levin's classification "Conjecture Ver