LESSON 7-1
Lexical Subcategorization
In Lesson 6, we saw some
examples of subcategorization (subdivisions) when we discussed abstract
and concrete nouns. In this lesson, we
will look at subcategorization not only in nouns but also within the categories
of verbs and adjectives. Let us start
with verb categorization.
A traditional
subcategorization of verbs is in terms of whether they take objects or
not. Verbs that take an object NP are
called transitive verbs; those
that take no objects are intransitive; and those that take two NPs are
referred to as ditransitive verbs.
Let us consider some examples:
Hence, we can categorize the
verbs using the frames:
NP---------NP (transitive;
appears after a subject NP and before an object NP), as in help
NP-------- (intransitive; appears after a subject
NP –with no NP following), as in fall
NP---------NP NP
(ditransitive; appears after a subject NP and before 2 object NPs), as in give
Verbs are also categorized
with regard to complements that they take: a complement is, roughly, a
clause/phrase that completes another syntactic unit/structure. Simply put, some verbs take full sentences,
while others do not. Examples follow:
For such verbs, we can have
a frame NP---------S (that is, the verb occurs after a subject NP and before a
sentence).
Linking verbs (also known as copula) is another subcategory with
the class of verbs. This small class
includes to be forms and such verbs as seem, appear and become. Consider these examples:
Thus, the syntactic frame
here would be NP----------Adjectives or NPs or PPs. (That is, the copula occurs after a subject and before an
adjective, noun phrase or a prepositional phrase.)
Linking verbs constitute a
distinct group, different than auxiliaries.
With AUX, there’s a main verb in the sentence and the to be form
acts as a helping verb. With copula,
the copula itself is the only verb in the sentence.
Contrast:
I am typing now. (Am is an AUX here, not a copula; there’s a
main verb ‘type’)
I am tired now. (Am is a
copula, followed by an adjective; it constitutes the verb of the sentence)
Now you try: what is the
function of ‘is’ in the following sentences?
AUX or copula?
(Answers: 4 & 5= AUX;
copula in remainder)
Verbs are also categorized
as stative and non-stative/dynamic.
Stative ones usually describe a mental state, e.g., know, want,
desire, and understand, or a state of ownership, as in own. Such verbs do not (ordinarily) appear in
progressive tense:
Non-stative verbs (those
referring to an action/act) sound fine in progressive tense:
Hence, for stative verbs, we
could posit the frame: NP_____-V+ing (that is, the verb appears after a subject
NP but not before a verb that has an -ing ending.)
You may recall that we have
already subcategorized nouns as concrete and abstract, as in dictionary
and integrity, respectively.
Another way to subcategorize them is by considering whether they are count
or non-count (mass) nouns.
Count nouns refer to countable units, as in 2 books; non-count
nouns are used to describe entities that cannot be counted, as in air, water,
mass, etc. Thus, the frame Numeral____
would apply to count nouns
only.
Another subcategory within
the category of nouns is proper nouns.
Proper nouns, e.g., Jane, Jim, Maria, do not (ordinarily) occur with an
article. That is, *the Jane stopped by
is not grammatical. (Of course, we have
special cases like ‘Maria has changed so much; she is no longer the Maria that
we have admired all these years. ’
Stative vs. non-stative subcategorization applies to
adjectives, as well as verbs. Stative
ones, e.g., tall, red, new, refer to more permanent states than
non-stative/dynamic ones. That is, (1)
and (2) sound fine, while (3), where there is a stative verb with a progressive
ending, doesn’t sound acceptable.
So much for lexical
categorization for the purposes of this class!
Clearly a lot more remains – which will have to wait for other courses,
e.g., Grammar, among others. Let us now
move on to 7-2.