Which sentence is wrong because it's not parallel?
If you come to the cabin this weekend, either we can water-ski or we can take a canoe out for some fishing.



If you come to the cabin this weekend, we can either go waterskiing or take a canoe out for some fishing.



If you come to the cabin this weekend, either we can go waterskiing or take a canoe out for some fishing.



If you come to the cabin this weekend, we can either water-ski or fish from a canoe.