Comparativos y superlativos?

¿Ejemplos? Te escribiré en Mayúsculas lo que se le agregan a los superlativos Primera regla para adjetivos cortos : * She is the smarTEST person I know. * Today is the coldEST day I can remember. * India is the biggEST country I have visited. Segunda regla para adjetivos que terminan con "y" : * He is the shIEST person I know. * Sergio is the happIEST person in this room. * Karla is the heavIEST person in the world. Tercera regla para adjetivos largos : * Love is THE MOSTvaluable feeling. * She is THE MOST ambitious person in the team. * I am THE MOST intelligent student in the english class. Cuarta regla para adjetivos irregulares : * She is THE WORST driver I know. * His idea is THE BEST I have listened. * He is THE BEST man for me.