Transitive and Intransitive Verbs
A transitive verb requires a direct object to complete its meaning. It usually expresses and action done by subject to the object. An intransitive verb does not require a direct object. Intransitive verbs express an action or state related to the subject of the sentence.
Watashi wa o-cha o nomu.
I drink tea.
Watashi wa toshokan made aruku.
I walk to the Library.
NOTE: Some English transitive verbs are intransitive in Japanese.
Tomu wa Nihongo ga wakaru.
Tom understands Japanese. (To Tom, Japanese is understandable.)
Koko kara umi ga mieru.
We can see the ocean from here. (From here the Ocean is visible.)