Homonym: ing (Gerund)
The suffix "ing" is commonly used in English to form the present participle of verbs. It indicates an ongoing action or a state of being. For example, in the verb run, adding "ing" creates running, which describes the action of running in progress.
Additionally, "ing" can be used to create gerunds, which function as nouns. For instance, swimming can refer to the activity itself, as in "I enjoy swimming." This versatility makes "ing" an essential part of English grammar, allowing for more dynamic sentence construction.