Adverbials
These clause elements add to or complete the meaning of the verb element. They may be single adverbs. But they also include nouns, noun or verb phrases and subordinate clauses: They ran quickly. He went home twice nightly. We walked on the playground. My friend phoned me this morning. I was happy when I saw her again.
Adverbials may appear in several positions in the clause, but are most common at the end: Often I dream. I often dream. I dream often.
Adverbials may perform different functions:
Adding information: I walked quietly.
Linking clauses: The bus was full. However, Fred found a seat.
Adding a comment on what is expressed: Quite frankly we disapprove of violence.
Some verbs (like put) must have an adverbial to complete their meaning: Please put the gun down. The path runs around the field.