"He was out to get me."
'Out' is not a verb, so 'He was out' looks like subject/linking verb/PA, except that quite plainly 'out to get me' carries the full meaning, because 'He was out' on its own means one of several completely different things. How do you analyse a construction (and there are many) where a 'modifier' in fact changes the meaning completely? 'To get me' isn't just adverbial to 'out', it changes the meaning completely. And, yes, a lot of verbs work this way, where their meaning is only clear from their complement. But 'out' is most simply analysed here as a PA. Can an adjective require a complement? Or rather, can a specific meaning of an adjective require a complement? And are there instances where an adjective can only have a particular meaning when used as a PA?