Although it is summer, it is still cool here—almost to the extent that it can be called a little chilly.
(i) Even admitting that Jane didn't have much time, I don't believe that she couldn't write a (simple) report like this. (ii) Although Jane says that she didn't have much time (or you say that Jane didn't have much time), I don't believe that she couldn't write a (simple) report like this.
I'm looking forward to the next academic conference. That being said, I haven't prepared for my presentation at all yet.
Although this was done by a child, it practically amounts to a crime.
Although it was the response I'd expected, it really did shock me to hear it.