Should have been doing, Ought to have been doing, Shouldn't have been doing, Oughtn't to have been doing kullanımı

           Should have been doing, Ought to have been doing, Shouldn't have been doing, Oughtn't to have been doing

Geçmişte bir noktada devam etmekte olan bir olaya ilişkin konuşurken, bu yapılan kullanırız.