Central Determiners

The definite article the and the indefinite article a/an are the most common central determiners:

all the book
half a chapter

As many of our previous examples show, the word my can also occupy the central determiner slot. This is equally true of the other possessives:

all your money
all his/her money
all our money
all their money

The demonstratives, too, are central determiners:

all these problems
twice that size
four times this amount

Postdeterminers

Cardinal and ordinal numerals occupy the postdeterminer slot:

the two children
his fourth birthday

This applies also to general ordinals:

my next project
our last meeting
your previous remark
her subsequent letter

Other quantifying expressions are also postdeterminers:

my many friends
our several achievements
the few friends that I have

Unlike predeterminers, postdeterminers can co-occur:

my next two projects
several other people

Verbs

Verbs have traditionally been defined as "action" words or "doing" words. The verb in the following sentence is rides:

Paul rides a bicycle

Here, the verb rides certainly denotes an action which Paul performs - the action of riding a bicycle. However, there are many verbs which do not denote an action at all. For example, in Paul seems unhappy, we cannot say that the verb seems denotes an action. We would hardly say that Paul is performing any action when he seems unhappy. So the notion of verbs as "action" words is somewhat limited.

We can achieve a more robust definition of verbs by looking first at their formal features.

The Base Form

Here are some examples of verbs in sentences:

[1] She travels to work by train
[2] David sings in the choir
[3] We walked five miles to a garage
[4] I cooked a meal for the family

Notice that in [1] and [2], the verbs have an -s ending, while in [3] and [4], they have an -ed ending. These endings are known as INFLECTIONS, and they are added to the BASE FORM of the verb. In [1], for instance, the -s inflection is added to the base form travel.

Certain endings are characteristic of the base forms of verbs:

4.2 Past and Present Forms

When we refer to a verb in general terms, we usually cite its base form, as in "the verb travel", "the verb sing". We then add inflections to the base form as required.

These inflections indicate TENSE. The -s inflection indicates the PRESENT TENSE, and the -ed inflection indicates the PAST TENSE.

Verb endings also indicate PERSON. Recall that when we looked at nouns and pronouns, we saw that there are three persons, each with a singular and a plural form. These are shown in the table below.

In sentence [1], She travels to work by train, we have a third person singular pronoun she, and the present tense ending -s. However, if we replace she with a plural pronoun, then the verb will change:

[1] She travels to work by train
[1a] They travel to work by train

The verb travel in [1a] is still in the present tense, but it has changed because the pronoun in front of it has changed. This correspondence between the pronoun (or noun) and the verb is called AGREEMENT or CONCORD. Agreement applies only to verbs in the present tense. In the past tense, there is no distinction between verb forms: she travelled/they travelled.

Date: 2015-12-17; view: 769