Inside the Predicate

Now we will look inside the Predicate, and assign functions to its constituents. Recall that the Predicate is everything apart from the Subject. So in David plays the piano, the Predicate is plays the piano. This Predicate consists of a verb phrase, and we can divide this into two further elements:

[plays] [the piano]

In formal terms, we refer to the verb as the PREDICATOR, because its function is to predicate or state something about the subject. Notice that Predicator is a functional term, while verb is a formal term:

FORM	FUNCTION
Verb	Predicator

However, since the Predicator is always realised by a verb, we will continue to use the more familiar term verb, even when we are discussing functions.

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The Direct Object

In the sentence David plays the piano, the NP the piano is the constituent which undergoes the "action" of being played (by David, the Subject). We refer to this constituent as the DIRECT OBJECT.

Here are some more examples of Direct Objects:

We bought a new computer I used to ride a motorbike The police interviewed all the witnesses

We can usually identify the Direct Object by asking who or what was affected by the Subject. For example:

We bought a new computer

Q. What did we buy? A. A new computer ( = the Direct Object)

The Direct Object generally comes after the verb, just as the Subject generally comes before it. So in a declarative sentence, the usual pattern is:

Subject -- Verb -- Direct Object

The following table shows more examples of this pattern:

Subject	Verb	Direct Object
The tourists	visited	the old cathedral
She	sent	a postcard
The detectives	examined	the scene of the crime

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Realisations of the Direct Object

The Direct Object is most often realised by an NP, as in the examples above. However, this function can also be realised by a clause. The following table shows examples of clauses functioning as Direct Objects:

CLAUSES functioning as DIRECT OBJECTS	EXAMPLES
Finite That-clause Nominal relative clause	[1] He thought that he had a perfect alibi [2] The officer described what he saw through the keyhole
Nonfinite To-infinitive clause Bare infinitive clause -ing clause -ed clause	[3] The dog wants to play in the garden [4] She made the lecturer laugh [5] Paul loves playing football [6] I'm having my house painted

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Subjects and Objects, Active and Passive

A useful way to compare Subjects and Direct Objects is to observe how they behave in active and passive sentences. Consider the following active sentence:

Active: Fire destroyed the palace

Here we have a Subject fire and a Direct Object the palace.

Now let's convert this into a passive sentence:

Passive: The palace was destroyed by fire

The change from active to passive has the following results: 1. The active Direct Object the palace becomes the passive Subject 2. The active Subject fire becomes part of the PP by fire (the by-agent phrase).

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