Object (grammar)

An object in grammar is a sentence element and part of the sentence predicate. It denotes somebody or something involved in the subject's "performance" of the verb. As an example, the following sentence is given:

In the sentence "Bobby kicked the ball", "ball" is the object.

"Bobby" is the subject, the doer or performer, while "kick" is the action, and "ball" is the object involved in the action.

The main verb in the sentence determines whether there can or must be objects in the sentence, and if so how many and of what type. (See also Valency (linguistics).) In many languages, however, including English, the same verb can allow multiple different structures; for example, "Bobby kicked", "Bobby kicked the ball", and "Bobby kicked me the ball" are all valid English sentences.

1 Types of object
2 Forms of object
3 The object in linguistics
4 See also
5 External links

[edit] Types of object

Objects fall into three classes: direct objects, prepositional objects, and non-prepositional indirect objects. An indirect object is the recipient of the direct object, or an otherwise affected participant in the event. For example, if three sentences are considered:

In "We threw knives", knives is the direct object of the verb threw. It corresponds to the accusative of languages with grammatical cases.
In "They sent him a postcard", him is the (non-prepositional) indirect object of the verb sent (which uses a double-object construction). It typically corresponds to the dative case.
In "We listened to the radio", the radio is the object of the preposition to, and the prepositional object of the verb listened. It can correspond to a variety of cases and complements.

In many languages, including German, Latin, and Classical Arabic, objects can change form slightly (decline) to indicate what kind of object they are (their case). This does not happen in English (though a few English pronouns do have separate subject and object forms); rather, the type of object is indicated strictly by word order. Also, some objects are treated different from others in particular languages. In Spanish for example, human objects have to get a preposition 'a.' This is called differential object marking.

[edit] Forms of object

An object may take any of a number of forms, all of them nominal in some sense. Common forms include:

A noun or noun phrase, as in "I remembered her advice."
An infinitive or infinitival clause, as in "I remembered to eat."
A gerund or gerund phrase, as in "I remembered being there."
A declarative content clause, as in "I remembered that he was blond."
An interrogative content clause, as in "I remembered why she had left."
A fused relative clause, as in "I remembered what she wanted me to."

[edit] The object in linguistics

In inflected languages, objects may be marked using morphological case. In many languages, the patient of a ditransitive verb is marked in the same way as the single object of a monotransitive verb, and is called the direct object. The recipient has its own marking, and is called the indirect object. In Latin and many other languages, the direct object is marked by the accusative case, while the indirect object is typically marked by the dative case.

In more isolating languages such as English, objects are marked by their position in the sentence or using adpositions (like to in I gave a book to him). Modern English preserves a case distinction for pronouns, but it has conflated the accusative and the dative into a single objective form (him, her, me, etc., which may function either as direct or indirect objects).

In some languages, the recipient of a ditransitive verb is marked in the same way as the single object of a monotransitive verb, and is called the primary object. The patient of ditransitive verbs has its own marking, and is called the secondary object. Such languages are called dechticaetiative languages, and are mostly found among African languages.

An object can be turned into a syntactic subject using passive voice, if the language in question has such a construction. In dative languages, the direct object is promoted, while in dechticaetiative languages the primary object is promoted. English shares this property with dechticaetiative languages, since non-prepositional indirect objects can be promoted:

His colleagues sent him a postcard.

He was sent a postcard.

In the immense majority of languages, where there is a preferred word order in the sentence, the object is placed somewhere after the subject. Analytic languages additionally tend to place the object after the verb, so that it remains separate from the subject.