My best friend's mum is dying. For both my friend's sake (their father is already dead and they don't have a partner) and their mum's sake (I've known her years and like her very much) I want to support them as much as I can. Due to a past misunderstanding I want to make it clear that I am willing to do everything I can. I can manage that bit.
However I also want to make clear that I'd be willing to attend the funeral in any capacity (to help/be there for my friend who doesn't have anyone of their own to fall back on/just be there out of respect and love for their mum). It's a bit weird to say I want to go to the funeral when the person's not dead yet. Is it appropriate and how best to ask?