English grammar rule I lowercase

Whether or not the pronoun “I” is the first word in a sentence, it is always capitalized. This rule is unique to the first-person singular pronoun, and there are no exceptions. Nobody knows why this is the rule, but it’s been that way for a long time.

Examples of 'I lowercase' rule

Incorrect	May i show you around?
Correct	May I show you around?
Incorrect	When i’m running late, i get impatient with other drivers.
Correct	When I’m running late, I get impatient with other drivers.
Incorrect	That’s not what i’d recommend.
Correct	That’s not what I’d recommend.

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