Let say we consider two distinguishable fermions(bi-fermions) in compact form. The case when both fermions are existing as free fermions, they will obey Pauli exclusion principle. In other case if pair of fermions are maximally entangled and making composite boson similar to pure boson. More than one composite boson can stay in same energy state. But what about the case when pair of fermions is making a composite boson but the properties of this composite boson are deviating from pure boson. And composite boson has less degree of compositeness. Will fermions obey pauli exclusion principle or not? Will more than one composite boson can stay in the same energy state or not in this case?