Example:
* walk (verb) + -ing = walking (verb)
Explanation:
The suffix "-ing" is added to the verb "walk" to create the present participle "walking." The present participle can be used in various grammatical contexts, such as:
* As a verb: "She is walking down the street."
* As an adjective: "The walking tour was very informative."
* As a noun: "The walking is excellent in this park."