Use of Capital letters and Punctuation marks-

Capital Letters:

Beginning of a Sentence: Every sentence starts with a capital letter. 

Proper Nouns:

Names of People: For example, Sarah, John. 

Names of Places: For example, London, Paris. 

Specific Things: For example, Eiffel Tower, Mount Everest. 

Pronoun "I": The pronoun "I" is always capitalized. 

Punctuation Marks:

Period (.): Used at the end of a statement or an imperative sentence to show that the sentence is complete. 

Question Mark (?): Used at the end of a question. 

Exclamation Mark (!): Used at the end of an exclamatory sentence to show strong emotion. 

Comma (,): Used to separate items in a list, to separate clauses in a complex sentence, or to mark pauses in a sentence.