211. Verbs are either transitive or intransitive ([§ 99]).

Some verbs may be followed by a substantive denoting that which receives the action or is produced by it. These are called transitive verbs. All other verbs are called intransitive.

A substantive that completes the meaning of a transitive verb is called its direct object.

In the following sentences, the first four verbs are transitive (with objects), the last five are intransitive (without objects):—

212. A verb which is transitive in one of its senses may be intransitive in another.

Transitive (with Object)Intransitive (without Object)
Boys fly kites.Birds fly.
The pirates sank the ship.The stone sank.
I closed my eyes.School closed yesterday.
Tom tore his coat.The cloth tore easily.

213. Many transitive verbs may be used absolutely,—that is, merely to express action without any indication of the direct object.

Transitive Verb with Object expressedTransitive Verb used absolutely
The horses drank water.The horses drank from the brook.
The farmer plows his fields.The farmer plows in the spring.
Charles is drawing a picture.Charles is drawing.

There is a sharp contrast between a transitive verb used absolutely and a real intransitive verb. To the former we can always add an object; with the latter no object is possible.