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The information on how you can clone a form is found in these guides:
To my understanding when you say interrogations you are referring to the question fields, is that correct? If it is what you mean, then, yes, every field is also going to be copied to the clone version of the form including conditions, preferences, and email notifications/autoresponder(email address will, of course, be change to the default email address of the account).
I hope this helps. If you have any other questions or if, any case, I have misunderstood your concern, please feel free to get back to us and provide us more information. Thank you.