That is what he thinks.
Is what he thinks an adjectival or nominal complement in the sentence above?
--------------------------------
I think it is a nominal one.
"What he thinks" has a noun-like function. In this linking verb type of sentence, it has the same meaning as the subject, that is, "That" = "what he thinks".
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
"What he thinks" has a noun-like function. In this linking verb type of sentence, it has the same meaning as the subject, that is, "That" = "what he thinks".
That is what he thinks.
It's certainly not adjectival. With the specifying sense of "be", it is possible to have both a fused relative construction, (in which case "what he thinks" would be a noun phrase), and a subordinate interrogative clause (embedded question).
In your particular example it is an interrogative where the subject "that" gives the value of the variable in "