French Intransitive Verb
An intransitive verb is a verb that doesn't allow an object, either direct or indirect.
Nous courons. (We run.)
Le chat miaule. (The cat is meowing.)
Il a éternué. (He sneezed.)
Souvent, je chante sous la douche. (I often sing in the shower.)
-> Note that 'in the shower' is not the object of the action of 'singing', but the place where the action is happening.