Adjectives:
* Red car
* Beautiful sunset
* Fast runner
* Happy child
* Difficult problem
Adverbs:
* Slowly walked
* Loudly shouted
* Quickly ran
* Happily played
* Carefully listened
Participles:
* Broken window
* Smiling face
* Fallen leaves
* Rushing river
* Burning fire
Here are some more examples of single-word modifiers in context:
* "The tall man walked quickly down the street." (Tall modifies "man," quickly modifies "walked")
* "The shining sun warmed the cold ground." (Shining modifies "sun," cold modifies "ground")
* "The angry dog loudly barked." (Angry modifies "dog," loudly modifies "barked")
Remember, a single-word modifier must be placed next to the word it is modifying to make the meaning clear.