How do I use 『on alternate days.』
1.I clean the room every other day
2.I clean the room on alternate days
3.He and I clean the room every other day
4.He and I clean the room on alternate days
I think 1 and 2 have the same meanings, and they mean 『I clean the room every 48 hours』, right?
Then, sentence 3 means 『We clean the room together, every 48 hours』right?
And I don't know what sentence 4 means? Is it 『I clean the room on Mon, Wed, Fri, and he dose it on Tue, Thu, Sat. . . . .』?
Thank you for helping