“. . . I’ve wanted to go to see you and Adam but I didn’t think I could do any good.”
“Well, you can’t do any harm. I thought he’d get over it. But he still walks around like a ghost.”
“It’s over a year, isn’t it?” Samuel asked.
“Three months over.”
“Well, what do you think I can do?”
“I don’t know,” said Lee. “Maybe you could shock him out of it. Nothing else has worked.”
. . . . . .
Suddenly he plucked his hard thumbs out of his neighbor’s throat.
(John Steinbeck, East of Eden)
The second prepositional phrase seems to be adverbial, while the first predicative complement over the object-him. What are the two’s role in their sentences?