@askar Right now, my understanding, is that Hugo does not handle forms at this time. However, it is possible to add forms to static sites that send the content to a service that handles the submitted content. An example of these services is FormKeep & Formspree.
You could also develop your own API application to handle the form requests, which could store them, send them to you via email, etc.
It is worth noting that this feature coming to Hugo not entirely out of the question, as it has been discussed before.
Hope that helps!