Whatever one may say―Say what one will―after all.
どんなものでも
どうしようにも
in spite of everything
どのようなことがあっても
I think I can manage it somehow.
to hasten to do something―lose no time in doing something
どんなことでも
いくらでもある
What can have become of him?
I manage to do it (somehow).
without considering the circumstances
I wonder what I ought to do.
Yes, I know.
however hard one perseveres
これ何をする
何ということ