The teacher tried to clarify the difficult concept for the students.
The teacher clarifies the difficult concept.
Allow me to clarify my position.
Could you clarify this point a bit more?
Sorry, but just to clarify, is this what you said?
Could you please clarify your question a bit more?
Sorry, but just to clarify, is this what you meant?
Sorry, but just to clarify, is this what you stated?
I understand your concern, let me clarify this aspect.
My email was probably misinterpreted, I would like to clarify.
I would like to clarify a few terms before signing the lease agreement.