In a Democracy people can vote for a president. The president keeps power by the military force.Citizens have rights like freedom of speech
In a Monarchy there is a king or queen who rules the kingdom and they have power through blood line.
In a Theocracy there is usually a relgous leader. They get threre power by representing religion.
In a dictator ship there is one leader and the citizens have no rights . The relationship with the citizens and the ruler is that they don´t really respect eachother.
In a constitutional monarchy the king or queens oldest daughter or son will be the next king or queen.
In a direct democracy there are people voting and there is a military force.