Uppercase letters are capital letters (A, B, C, etc.) used at the beginning of sentences or for proper nouns, while lowercase letters are small letters (a, b, c, etc.) used in the rest of the text.

There are 26 letters in the English alphabet, consisting of 21 consonants and 5 vowels.

The uppercase version of the letter 'g' is 'G'.

The lowercase version of the letter 'T' is 't'.

Distinguishing between uppercase and lowercase letters is important for proper grammar, spelling, and meaning in written communication.

The uppercase version of the letter 'm' is 'M'.

The lowercase version of the letter 'Z' is 'z'.