When to choose uppercase or lowercase letters is mostly determined by the conditions. There are numerous rules in English grammar that tell us the use of capital and lowercase letters. Some of the most well-known are as follows:
A capital letter must be used at the beginning of a sentence.
Proper nouns and names should be capitalised at all times.
The first word of a quote is frequently capitalised.
Always capitalise name or a proper noun.
Months, holidays, and years should all be written in capital letters.
Summer, Winter, Spring, and Autumn are examples of seasons that should not be capitalised.