This can be a useful tool for review, allowing students the opportunity to find out what they need to study more in terms of their verb conjugations.
Basic setup: Divide the class into 3 or 4 teams (Depending on number of students and available space). Provide each team a marker and an eraser.
Start the game simply - state a verb in the infinitive form and the currently selected team member tries to be the first to write the verb's conjugations on the board. Team member assistance can be permitted as necessary. Team members rotate after each verb.
As the game progresses (or as the class progresses), additional complications can be added such as using an image representative of the verb or putting the verb in a context so that they have to think about what the verb actually means and how it is used.