Focus Adjuncts

In The Cambridge Grammar of the English Language (CGEL), a focus adjunct is a syntactic function, not a lexical category.

Focus adjuncts are usually realized by adverbs or adverbial phrases, and their defining property is that they associate with a focused constituent in a sentence. They do not generally function as clause-level adverbials.


Category vs Function

  • Category (lexical class): what kind of word it is (adverb, noun, verb, etc.)

  • Function: the role it plays in a clause or phrase (focus adjunct, degree modifier, adverbial, complement, etc.)

A focus adjunct is a function. Most focus adjuncts are adverbs, but they are not adverbials, because they do not modify the clause; they modify or associate with a focused constituent.


What a focus adjunct can modify

Focus adjuncts can associate with:

Scope / Modified Element

Example

Effect / Interpretation

Subject NP

Only John left the room.

Restricts the subject

Object NP

John invited only Mary.

Restricts the object

Prepositional Phrase (PP)

He sat only on the left.

Restricts location

VP / Predicate

John only wanted to help.

Restricts the action

Adjective / AdjP

She is particularly tall.

Highlights a property

Entire clause

Above all, be honest.

Emphasizes the whole proposition

What matters is the focus association, not the grammatical category of the modified constituent.


Key Properties

  1. Optional / adjunct status: focus adjuncts are not required by the verb or predicate.

  2. Scope-sensitive: meaning can change depending on which constituent is in focus.

  3. Category vs function: focus adjuncts are typically adverbs (lexical category) but their function is focus-association, not clause modification.

  4. Information-structural role: focus adjuncts signal selection, restriction, or emphasis on the focused element.


Contrast With Degree Modifiers

Property

Focus Adjunct

Degree Modifier

Head modified

NP, PP, VP, sometimes clause

Adj, Adv, VP

Function

Selects or restricts focused constituent

Scales or measures the head

Example

John only invited Mary

John is virtually finished


Summary

  • Focus adjunct = CGEL function that associates with a focused constituent

  • Mostly realized by adverbs or adverbial phrases

  • Not the same as a clause-level adverbial

  • Signals restriction, selection, or emphasis, depending on placement and focus

Focus adjuncts are a prime example of how CGEL separates lexical category (adverb) from syntactic function (focus adjunct).