Should first words in sentences be capitalized?

Yes, the first word in a sentence should always be capitalized. This is a fundamental rule of English grammar and helps to make writing clear and easy to read.

There are a few exceptions, such as:

* Sentence fragments: These are incomplete sentences that may not have a subject or verb, and the first word may not be capitalized.

* Lists or titles: Sometimes, the first word in a list or title is not capitalized if it follows a colon or other punctuation mark.

However, it is generally best to follow the standard rule of capitalization to ensure that your writing is grammatically correct and easy to read.