There are different Kinds and Forms of Governments. According to kinds, the governments can be classified into De Jure and De Facto. According to forms, the governments can be classified into Monarchy, Aristocracy and Democracy, and in relation with the extent of powers that is exercised by the national or the central government, as well as in relation with the relationship between the legislative and the executive.

As mentioned, the kinds of government can be classified into the De Jure and the de Facto.
The De Jure kind of government is founded via a constitutional law of the state; this kind of government has the general support of the people in a particular state.

The De Facto kind of government is the government which was not founded by the law of the constitution. This kind of government is further classified according to how it was established. The De Facto government could either be called as De Facto Government by Usurpation, De Facto government by Insurrection and De Facto government by invasion.

The De Facto Government by Usurpation is established by getting possession and control of, or usurps by force with the voice of the majority. The Governance here is acquired through overthrowing the existing governance by force with the will and consent of the majority of the people.

The De Facto Government by Insurrection is established when the inhabitants of the country rise up in insurrection against the parent state.

The De Facto Government by Invasion is established upon invading and occupying the territory of an enemy in a course of war. It is established and maintained by the Military and dominated by the Government with a paramount force.

The governments are also classified in their form as mentioned above.
The Monarchy form of government is a government which the final and supreme authority belongs to only single person. Monarchy is classified into two; the Absolute monarchy and the Limited monarchy. The Absolute Monarchy is the kind of monarchy in which the ruler rules by divine right; the Limited Monarchy is the kind of monarchy in which the ruler rules the state according to a constitution.

The Aristocracy is a form of government in which the political power is only exercised by the few privileged class.

The Democracy is a form of government wherein the power is exercised by the majority. This form of government is classified into the Direct or Pure democracy as well as Indirect representative or Republican democracy.

In the first classification, the will of the state is expressed immediately through the people in a mass meeting or primary assembly.

In the second classification, the will of the state is expressed through a selected body of persons chosen by the people to represent them.

There are other forms of government according to the extent of power of the national government and according to relationship between the legislative and judiciary.
According to the extent of power, they are the Unitary Form and the Federal Form.
The Unitary form is a form of government in which the controls of the national as well as the local affairs are controlled by the National government.

The Federal form is a form of government in which there are two sets of divisions in the power of the government. One controls the National affairs and one controls the Local affairs. Both divisions are supreme in their own jurisdictions.

According to the relationship between the executive and the legislative, the forms of government are the Parliamentary form and the presidential form.

In the parliamentary form of government, the legislature has the power to terminate the tenure of office of the executive. In the Presidential form of government, the executive is directly elected by the people and he or she is considered as independent to the legislative.