Should be doing, Ought to be doing, Shouldn't be doing, Oughtn't to be doing kullanımı

Should be doing, Ought to be doing, Shouldn't be doing, Oughtn't to be doing

İçinde bulunduğumuz ana ilişkin bir öğütte bulunmak istiyorsak, bu yapıları kullanırız.

Why is he sleeping now? 

He should be studying for his test.

Why are the children still awake at this late hour?

 They should be sleeping.

Look! Those children are playing in the street, but it is dangerous.

 They shouldn't be playing there. 

They should be playing in the play ground. I'm watching TV with you now, but in fact, I should be studying in my room.