* Clarity and Structure: Capital letters help us distinguish the start of a new sentence from the end of the previous one. This makes it easier to read and understand written text.
* Respect for Language: Using capital letters is a convention that is deeply ingrained in most languages. It's like a silent agreement among writers and readers.
* Proper Nouns: Capital letters also mark proper nouns, which are names of specific people, places, and things. For example, "John," "London," and "Apple" are all proper nouns.
Here are some specific cases where capital letters are used:
* The beginning of a sentence: This is the most basic rule.
* Proper nouns: Names of people, places, organizations, and specific things (like brands).
* Titles of books, movies, songs, etc.: Each important word in a title is capitalized.
* Days of the week and months of the year: "Monday," "December"
* Abbreviations: "USA," "Dr."
* The pronoun "I": This is always capitalized.
Let me know if you'd like more examples or have any other questions about capitalization!