Раскройте скобки But if Dims ( not come), we (go) skating to the skating-rink Только правильно

But if Dims does not come, we shall go skating to the skating-rink.

But if Dims did not come, we should go skating to the skating-rink.

We shall go skating to the skating-rink, but if Dims does not come.

We should go skating to the skating-rink, we shall go skating to the skating-rink.

Shall we go skating to the skating-rink, but if Dims does not come?

Should we go skating to the skating-rink, we shall go skating to the skating-rink?

We shall go skating to the skating-rink, but if Dims does not come, shall not we?

We should go skating to the skating-rink, we shall go skating to the skating-rink, should not we?