Is it possible to have a determiner without a complement in any language?
I'm interested in sentences like "I bought two books" and "I bought two". What is the grammatical category of 'two' in the second sentence?
Is it possible to have a determiner without a complement in any language?
I'm interested in sentences like "I bought two books" and "I bought two". What is the grammatical category of 'two' in the second sentence?
It depends on your analysis, but many syntacticians take personal pronouns like "he" to be of category D without any c-selectional features (particularly if they like their noun phrases being DPs instead of NPs).
Supporting this is the fact that proper nouns can sometimes appear with determiners: "the Bob Smith", "our Katie". Personal pronouns generally cannot: *"the you", *"our him". (The only exception I can think of is "the real me", which is somewhat of a fixed expression.)
I thought about my question and the arguments presented by others. Most arguments look at the question from the Chomskian point of view, while we can look at the word's properties. Let's look at the example:
+ I bought two books.
- I bought two.
In this example, 'two' is a pro-form sharing the features of nouns and pronouns. You can identify this by changing the example:
+ I bought two linguistic books.
- I (also) bought three.
In this example 'three' functions as a pro-form by referring to 'linguistic books'. Let's change it more:
+ I bought two linguistic books.
- I (also) bought three. The three are about philosophy.
or
- I (also) bought three. All three are about philosophy.
Here, 'three' functions as a pro-form by referring to 'books' (not 'linguistic books'). It also takes 'the' or 'all' which is a nominal feature.
In conclusion, it is a pro-form. Since pro-form is not a grammatical category, but it shares features with nouns, we can consider it as a noun (as Lambie suggested).
If you say: "I bought two". That's a noun. Cardinal numbers are nouns. Cardinal numbers preceding nouns are determiners: I bought two books.
Even if there is an ellipsis as Draconis points out the first case above, it functions as a noun.