The question “Who am I?” is used when you question what type of person you are.
“Who I am” is a sentence fragment and is part of a sentence or indirect question. “Do you know who I am?”
More examples of Who am I?
Who am I? Is a question when we reflect about ourselves in self-discovery. In other words, this could be a time in your life when you discover your purpose in life.
We also use this if you are asking your friends which character/team you are when you are playing a game.
(playing Fifa football)
John: Who am I?
Peter: You are Barcelona and I am Real Madrid.
Who I am?
As I said before, Who I am is usually a part of a sentence or indirect question. We change the order of the subject and the verb when we use indirect questions.
Direct question: Who am I?
Indirect question: Do you know who I am?
In this second question, the meaning is different from the first question. In the first question, you are questioning your existence. The second question means that the speaker believes he/she is a person of importance and is surprised that the other person is not aware of this.
More Examples:
I don’t know who I am.
Can you tell me who I am?
Introducing yourself
If you are introducing yourself in a presentation it is better to use “Who I am”, Then you can explain the person you are and it sounds more confident than “Who am I?”.
Conor is the main writer here at One Minute English and was an English teacher for 10 years. He is interested in helping people with their English skills and learning about using A.I tools at work.