When you look up the meaning of verbs in your dictionary, you will find some verbs marked v.i., and some verbs marked v.t. V.t. is the abbreviation for verb transitive. Whenever you find a verb marked v.t., you know that it is a transitive verb, a verb of action, one which requires an object to complete its meaning. V.i. is the abbreviation for verb intransitive. Some grammarians use the term intransitive to include both complete and copulative verbs. We have used the terms complete and incomplete because they are much simpler and clearer in describing the two general classes of verbs, but you will remember that when you find verbs marked v.i. in the dictionary that these include complete and copulative verbs.
101. Now notice these sentences:
- The earth is round.
- The earth is a sphere.
In these sentences the verb is does not express action, but connects or couples the complements round and sphere with the subject earth. Verbs used in this way are called copulative verbs, from the word copula, which means to complete or to connect. The words round and sphere are not the objects of the verb, for they do not describe the receiver of any action. They are the words which describe the state or condition expressed in the verb is, and are called the attribute complement of the verb.
You note that this complement may be either an adjective or a noun. In the sentence, The earth is round, the adjective, round, is used as the complement; in the sentence, The earth is a sphere, the noun, sphere, is used as the complement. So we have our definition of copulative verbs.
102. Verbs that express state or condition are called copulative verbs.
The word or words that complete the meaning of an incomplete verb expressing state or condition, are called the complement, or attribute complement.
There are only a few of these copulative verbs. All forms of the verb, be; like am, is, are, was and were, and the verb phrases like must be, can be, will be, shall be, have been, had been, etc.; and the verbs seem, appear, become, look, feel, taste, sound and smell, are the principal copulative verbs.
Exercise 3
Study carefully the following sentences. Note whether the complement of the copulative verb is an adjective or a noun. Draw one line under each adjective used as a complement and two lines under each noun used as a complement.