He's coming to see us this evening, although I don't know exactly when.
He's rather shy, although he's not as bad as he used to be.
I liked the food although my friends didn't like it. (Preliminary English Test; B1; Spanish)
She walked home by herself, although she knew that it was dangerous.
There were no taxis on the street so, although it was raining, I started walking in the rain. (Preliminary English Test; B1; Spanish)