He can say whatever/whoever he wants. She can take whenever/whatever she wants from the bridge. Whoever/Whenever ate the last piece of cake, please buy some more. There are three bikes at my house, and I can drive however/whichever of them I want. Whenever/Whoever I arrive home, supper is waiting for me on the cooker. I always feel at home wherever/whichever I travel in the world. Wherever/Whenever she puts her keys, she always forgets where they are. I don’t know who did it but whichever/whoever it was is in great trouble. You can take whatever/whichever of these flowers you like. You need to report any accidents, however/whenever small they may seem to be.