PHRASES (prhases.doc)

We have now completed the first level of grammatical analysis, in which we looked at words individually and classified them according to certain criteria. This classification is important because, as we'll see, it forms the basis of the next level of analysis, in which we consider units which may be larger than individual words, but are smaller than sentences. In this section we will be looking at PHRASES. 

Defining a Phrase 

When we looked at nouns and pronouns, we said that a pronoun can sometimes replace a noun in a sentence. One of the examples we used was this: 

[Children] should watch less television

~[They] should watch less television 

Here it is certainly true that the pronoun they replaces the noun children. But consider: 

[The children] should watch less television

~[They] should watch less television 

In this example, they does not replace children. Instead, it replaces the children, which is a unit consisting of a determiner and a noun. We refer to this unit as a NOUN PHRASE (NP), and we define it as any unit in which the central element is a noun. Here is another example: 

I like [the title of your book]

~I like [it] 

In this case, the pronoun it replaces not just a noun but a five-word noun phrase, the title of your book. So instead of saying that pronouns can replace nouns, it is more accurate to say that they can replace noun phrases. 

We refer to the central element in a phrase as the HEAD of the phrase. In the noun phrase the children, the Head is children. In the noun phrase the title of your book, the Head is title. 

Noun phrases do not have to contain strings of words. In fact, they can contain just one word, such as the word children in children should watch less television. This is also a phrase, though it contains only a Head. At the level of word class, of course, we would call children a plural, common noun. But in a phrase-level analysis, we call children on its own a noun phrase. This is not simply a matter of terminology -- we call it a noun phrase because it can be expanded to form longer strings which are more clearly noun phrases.

   The Basic Structure of a Phrase

Phrases consist minimally of a Head. This means that in a one-word phrase like [children], the Head is children. In longer phrases, a string of elements may appear before the Head:

[the small children]

For now, we will refer to this string simply as the pre-Head string.

A string of elements may also appear after the Head, and we will call this the post-Head string:

[the small children in class 5]

So we have a basic three-part structure:  

Of these three parts, only the Head is obligatory. It is the only part which cannot be omitted from the phrase. To illustrate this, let's omit each part in turn:

  Pre-Head and post-Head strings can be omitted, while leaving a complete noun phrase. We can even omit the pre- and post-Head strings at the same time, leaving only the Head:

This is still a complete noun phrase.

However, when the Head is omitted, we're left with an incomplete phrase (*the small in class five). This provides a useful method of identifying the Head of a phrase. In general, the Head is the only obligatory part of a phrase.

More Phrase Types

Just as a noun functions as the Head of a noun phrase, a verb functions as the Head of a verb phrase, and an adjective functions as the Head of an adjective phrase, and so on. We recognise five phrase types in all: 

For convenience, we will use the following abbreviations for the phrase types:

Using these abbreviations, we can now label phrases as well as bracket them. We do this by putting the appropriate label inside the opening bracket:

[NP the small children in class 5]

Now we will say a little more about each of the five phrase types.

 Noun Phrase (NP)

As we've seen, a noun phrase has a noun as its Head. Determiners and adjective phrases usually constitute the pre-Head string:

[NP the children]
[NP happy children]
[NP the happy children]

In theory at least, the post-Head string in an NP can be indefinitely long:

[NP the dog that chased the cat that killed the mouse that ate the cheese that was made from the milk that came from the cow that...]

Fortunately, they are rarely as long as this in real use.

The Head of an NP does not have to be a common or a proper noun. Recall that pronouns are a subclass of nouns. This means that pronouns, too, can function as the Head of an NP:

[NP I] like coffee
The waitress gave [NP me] the wrong dessert
[NP This] is my car

If the Head is a pronoun, the NP will generally consist of the Head only. This is because pronouns do not take determiners or adjectives, so there will be no pre-Head string. However, with some pronouns, there may be a post-Head string:

[NP Those who arrive late] cannot be admitted until the interval

Similarly, numerals, as a subclass of nouns, can be the Head of an NP:

[NP Two of my guests] have arrived
[NP The first to arrive] was John

Verb Phrase (VP)

In a VERB PHRASE (VP), the Head is always a verb. The pre-Head string, if any, will be a `negative' word such as not [1] or never [2], or an adverb phrase [3]:

[1] [VP not compose an aria]
[2] [VP never compose an aria]
[3] Paul [VP deliberately broke the window]

Many verb Heads must be followed by a post-Head string:

My son [VP made a cake] -- (compare: *My son made)
We [VP keep pigeons] -- (compare: *We keep)
I [VP recommend the fish] -- (compare: *I recommend)

Verbs which require a post-Head string are called TRANSITIVE verbs. The post-Head string, in these examples, is called the DIRECT OBJECT.

In contrast, some verbs are never followed by a direct object:

Susan [VP smiled]
The professor [VP yawned]

These are known as INTRANSITIVE VERBS.

However, most verbs in English can be both transitive and intransitive, so it is perhaps more accurate to refer to transitive and intransitive uses of a verb. The following examples show the two uses of the same verb:

Intransitive: David smokes Transitive: David smokes cigars

We will return to the structure of verb phrases in a later section.

Adjective Phrase (AP)

In an ADJECTIVE PHRASE (AP), the Head word is an adjective. Here are some examples:

Susan is [AP clever]
The doctor is [AP very late]
My sister is [AP fond of animals]

The pre-Head string in an AP is most commonly an adverb phrase such as very or extremely. Adjective Heads may be followed by a post-Head string:

[AP happy to meet you]
[AP ready to go]
[AP afraid of the dark]

A small number of adjective Heads must be followed by a post-Head string. The adjective Head fond is one of these. Compare:

My sister is [AP fond of animals]
*My sister is [fond]

Adverb Phrase (AdvP)

In an ADVERB PHRASE, the Head word is an adverb. Most commonly, the pre-Head string is another adverb phrase:

He graduated [AdvP very recently]
She left [AdvP quite suddenly]

In AdvPs, there is usually no post-Head string, but here's a rare example:

[AdvP Unfortunately for him], his wife came home early

Prepositional Phrase (PP)

PREPOSITIONAL PHRASES usually consist of a Head -- a preposition -- and a post-Head string only. Here are some examples:

[PP through the window]
[PP over the bar]
[PP across the line]
[PP after midnight]

This makes PPs easy to recognise -- they nearly always begin with a preposition (the Head). A pre-Head string is rarely present, but here are some examples:

[PP straight through the window]
[PP right over the bar]
[PP just after midnight]

Phrases within Phrases

We will conclude this introduction to phrases by looking briefly at phrases within phrases. Consider the NP:

[NP small children]

It consists of a Head children and a pre-Head string small. Now small is an adjective, so it is the Head of its own adjective phrase. We know this because it could be expanded to form a longer string:

very small children

Here, the adjective Head small has its own pre-Head string very:

[AP very small]

So in small children, we have an AP small embedded with the NP small children. We represent this as follows:

[NP [AP small] children]

All but the simplest phrases will contain smaller phrases within them. Here's another example:

[PP across the road]

Here, the Head is across, and the post-Head string is the road. Now we know that the road is itself an NP -- its Head is road, and it has a pre-Head string the. So we have an NP within the PP:

[PP across [NP the road]]

When you examine phrases, remember to look out for other phrases within them.