Read the following sentences.

• Ann heard a loud noise.
• Ann ran.

In the first sentence, the verb heard has an object (a loud noise), whereas in the second sentence the verb ran has no object.

A verb which has an object is called a transitive verb. A verb which has no object is called an intransitive verb.

More examples are given below.

She sat in a corner. (Intransitive: sat has no object.)
She wrote a letter. (Transitive: verb – wrote; object – a letter)
The baby cried. (Intransitive: cried has no object.)
He won a prize. (Transitive: verb – won; object – a prize)

Most verbs can be used both as transitive and intransitive verbs.

Heat expands metals. (Transitive; object: metals)
Metals expand on heating. (Intransitive; no object)
The guard stopped the train. (Transitive; object: the train)
The train stopped. (Intransitive; no object)

Verbs with two forms

Some verbs have different forms for the transitive and the intransitive. Examples are: fall, fell; lie, lay; rise, raise; sit, set.

He fell off the stairs. (Fell – intransitive)
The woodcutter felled a huge tree. (Felled – transitive; object – huge tree)
Books lay on the table. (Lay – intransitive)
He laid the books on the table. (Laid – transitive; object – the books)
He rose to address the gathering. (Rose – intransitive)
He raised his voice. (Raised – transitive; object – his voice)

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