On your turn, you can take a move action an immediate action or a minor action instead of a standard action, and you can take an immediate action or a minor action instead of a move action. Because you can substitute actions in this way, the three actions you get on your turn (in addition to any free actions) can vary.

Option A

One Standard action
One Move action
One Minor/Immediate action

Option B

One Standard action
Two Minor/Immediate actions

Option C

Two Move actions
One Minor/Immediate action

Option D

One Move action
Two Minor/Immediate actions

Option E

Three Minor/Immediate actions