What are the five uses of geround as a noun?

It's not quite accurate to say there are "five uses" of a gerund as a noun. Gerunds *are* nouns, so they function as nouns do. Here are the common ways gerunds are used:

1. Subject of a Sentence:

* Swimming is my favorite activity.

2. Object of a Verb:

* I enjoy reading.

3. Object of a Preposition:

* I'm good at cooking.

* We talked about traveling to Europe.

4. Appositive:

* My favorite hobby, painting, helps me relax.

5. Predicate Nominative:

* Her greatest passion is writing.

Gerunds can be used in many ways, but these are some of the most common. They are essential for creating concise and expressive writing.