NORMAL zoans have two forms.
Mythical zoans have NEVER shown a hybrid form up to this point. Normal zoans also need the user to transform into the animal or hybrid form to give the user any benefits, meanwhile mythical fruits give benefits to the user's base human form. Marco has the fast regenerative capabilties of a phoenix in his human form, and Kaido has a tough skin like a dragon's in his human form, for example.
Do they have a hybrid form? everythign soo far inddicates that nop, they do not, seeing Marco didnt use it in Marineford, implying that at best, the equivalent of "hybrid form" in Mythical zoans is the ability to turn just a few parts of your body into the animal.
Soo before acting all arrogant, pay attention to the conversation.