If English was easy... (Grammar: Conditionals)

Zero Conditional: If * subject 1 * verb 1, * subject 2 * verb 1

First Conditional: If * subject 1 * verb 1, * subject 2 * will * verb 1

Second Conditional: If * subject 1 * verb 2, * subject 2 * would * verb 1

Third Conditional: If * subject 1 * had * verb 3, * subject 2 * would * have * verb 3