Is it possible to run a multiple linear regression analysis when one of the categorical predictors has more than 2 groups?

#1
I want to run a multiple linear regression analysis with 5 categorical or continuous predictors (independent variables) for a continuous outcome (dependent variable). Is it possible to use a multiple linear regression analysis if one of the predictors has more than 2 groups?
 

hlsmith

Less is more. Stay pure. Stay poor.
#4
One group will be the base case and it will bee represented with the intercept and the other two groups will have their own estimate terms.