Complements vs. Adjuncts (after CGEL 4.1.2)
Criteria Complements Adjuncts
Licensing
She mentioned/*alluded the letter


 
     (can have some choice)
    choice of subrd. clause
 It consists of egg and milk.
He gave it to Pat.
He supplied them with sufficient food.
I blame it on Kim.
He threw it to/towards/past Pat.
Whether/*that we go abroad depends on the cost.
He tends to be lazy/*being  lazy/*that he is lazy.
He doesn't know whether or not she likes him.


He set out with/without sufficient food.




I'm inviting him, whether or not she likes him.
Obligatoriness
   (stronger than licensing)
She perused the report. /*She perused.
She read the report. / She read. (complement optional with read)
It consists of egg and milk./*It consists.
He tends to be lazy. /*He tends.
She put/deposited the money in her bank account.
Lunch was followed by the President's annual speech.
She left because she was ill. / She left.
Anaphora
*Jill keeps her car in the garage but Pam does so in the road.
*She rode her bicycle and she did so to school.
Jill washes her car in the garage but Pam does so in the road.
She performed all the tasks and she did so remarkably well.
Category
typically NPs
either for PPs: He relied on his mother.
AdvPs: typically adjuncts, but:  They treat us quite badly.
content clauses: mainly complements
   I hadn't noticed that she was looking so worried.
either for (predicative) AdjPs
  She was disgusted at his betrayal.
But: They saw her this morning/ last week.
I slept on the floor.
She writes exceptionally clearly.

What had happened, that she was looking so worried?

Disgusted at his betrayal, she went back to Paris.
Position
more restricted to a basic position

Argumenthood
Complements are arguments of the predicate

Selection
Predicates impose selectional restrictions on args.
   Kim /*the cheese enjoyed the concert.
   He ate everything we had in the house. (sense of everything restricted to 'food')

Roles
Complements are cast in semantic roles by their heads.