The distinction between next door as an adverb and an adjective really is splitting hairs:
https://www.collinsdictionary.com/di...lish/next-door
The tree next door survived the storm.
No, it's not a determiner.
It's always worth checking with a dictionary when in doubt, and dictionaries treat "next" as either an adjective ("my next job") or an adverb ("What shall we do next?"). Further support for the adjective analysis is that "next" can be modified by "very" ("my very next job").
The definite article "the" indicates that the referent of the NP it introduces is identifiable -- I assume you know which tree I am referring to. In this case, the tree is identifiable by virtue of being in the property next to yours, so "next door" must be a modifier of "tree".
NOT A TEACHER
Hi,
I have a suspicion that some people would say that "The tree next door" is a shorter way to say "The tree that is next door."
a. "that is next door" is an adjective phrase.
b. But "next door" is modifying "is" (which means "exists" in that adjective phrase), so "next door" is adverbial in "that is next door."
As the other posters have said, it's really difficult to come to a definitive answer. But if I were using the Reed-Kellogg diagramming system, for the sake of simplicity, I would classify "next door" in your sentence as an adjectival modifier of "tree."
May I commend you for wanting to parse sentences? I look forward to many more of your interesting questions in my favorite sub-forum.
the tree that is next door
I wouldn't go along with what you say.
The expression "that is next door" does indeed modify "tree", but it is a relative clause, not an adjective phrase.
"Next door" is a locative complement of "is", not a modifier, as is evident from it being obligatory. Note that obligatory items are always complements -- they are required to complete the verb phrase.
"Next door" is of course an idiom. Thus in "How do you get on with the people in the house next door?", "the house next door" means "the house which is (immediately) next to yours".
The next door neighbor brought me a cake. (Proper word order)
Could it be the author of the sentence placed the adjectival modifier after the noun for style, as in "The tree next door."
One may also claim the participle is missing: The tree growing next door is ready to fall.
"Next door"seems almost certainly pointed at the noun "tree" and not at the verb "is."
Last edited by Luckysquirty; 22-Apr-2020 at 22:49.
There's nothing 'missing': "the tree next door" is the natural way of saying it. The other expressions are just different ways of saying it that may require a particular context.
In "the tree next door", the adjective "next" is modifying "door", so "next door" is a noun phrase modifying "tree". Thus "the tree next door" is a noun phrase.
But in, for example, "I like the tree that is next door", the element "that is next door" is a relative clause modifying tree. Here the noun phrase "next door" is complement of "be". It's a complement because it's an obligatory item.
Note that, as I said before, "next door" is an idiom.