Provide examples of relative adverbs used in sentences.

Relative adverbs are used to introduce relative clauses, which provide additional information about a noun or pronoun in a sentence. They include "where," "when," and "why." Here are examples of each relative adverb used in sentences:

1. Where:
- The house where I grew up is now a museum.
- This is the park where we had our picnic last summer.
- Do you know the restaurant where they serve the best pizza in town?

In these examples, "where" introduces a relative clause that provides information about the location or place.

2. When:
- The day when we met for the first time was unforgettable.
- Do you remember the year when we went on that amazing trip?
- I will never forget the moment when I received my diploma.

In these examples, "when" introduces a relative clause that provides information about the time or period.

3. Why:
- That's the reason why I couldn't attend the party.
- Can you explain the purpose behind why you made that decision?
- I don't understand the logic behind why she said that.

In these examples, "why" introduces a relative clause that provides information about the reason or cause.

Relative adverbs are useful in adding more details to a sentence and connecting ideas. They help to clarify the context and provide a deeper understanding of the noun or pronoun being referred to.