Each term is used exactly twice. The second term in your conclusion will always be in the top premise. Once a categorical syllogism is in standard form, we can then determine its mood and figure. The form of the syllogism is named by listing the mood first, then the figure. It is a list of the types beginning with the major premise and ending with the conclusion.
Figure depends on the arrangement of the middle terms in the proposition.
It is quite simple to determine the mood and figure of a standard form categorical syllogism. Don't make it difficult. If the argument form is in the chart, the argument is valid. If it is not in the chart, and if you can certify that the required terms of the syllogism exist, then check the second chart. If it is on this chart, the argument is valid.