The Choleric temperament has three combinations: Choleric-Sanguine, Choleric-Phlegmatic, and Choleric-Melancholic.
The traits of the primary temperament, Choleric, may be altered or modified in some significant way because of the influence of the secondary temperament. Remember, there are at least three levels of intensity of a temperament: classic, moderate, and mild. Some Cholerics will be very strong, others somewhat strong, and still others more mild.
Choleric is traditionally understood as being fundamentally unstable (defined as "strong emotions") and extraverted (defined as "short-lasting emotions").