Past continuous subjunctive in the second conditional

The past continuous subjunctive can be used in the if-clause of a sentence in the second conditional to express an unreal action in the present which is imagined as continuous:

If it wasn't raining, we would have lunch outside. (it is raining)
If we were staying at the other hotel, we wouldn't have such a nice view of the river. (we are not staying at the other hotel)
If the kids weren't shouting all the time, perhaps I wouldn't feel so stressed. (the kids are shouting all the time)