Could you use the word knavery in a sentence?

How could you say something like that? Could you please feed the pets? Why couldn't you just do it sooner? I couldn't be more straightforward :).

no

if you're failing, you could study to pick up your grades. Could you at least make your bed before leaving the house? If you have enough money, you can go to the movies.

Nicole concentrated on all her homework, so when she was done she could play with her friends.