iam back ....

Dear student
Assuming that your question is to identify the pronoun in the above sentence, here is your answer-
"I" is the pronoun in the above sentence.
A pronoun is a word which is used in place of a noun to make the sentence less repetitive.For eg- he, she, they, we etc.

Please be a little clear and specific regarding your query from next time, so that we can provide you with a meaningful solution.
Hope this helps!
Regards