Some adverbs have the same form as adjectives.

Adjective Adverb

Louise caught the fast train. The train was going quite fast.

We didn't have a long wait. We didn't have to wait long.

Adverbials are typically used to talk about:

* where something happens (place): I put my bag on the floor.

* when something happens (time): The rain lasted all night.

* the way in which someone does something or something happens or exists (manner):

You"re acting as if you were still a teenager.

The position of an adverbial depends on what it modifies. It can modify a word or phrase or a whole clause. Its position also depends on what type of adverbial it is and whether it is a single word or a phrase.

When an adverbial modifies a verb or a whole clause, there are three main places we can put it.

Front: Really, I can't say.

Mid: I can't really say.

End: I can't say, really.

Sometimes we can also put an adverbial after the subject: I really can't say.