How to use "grateful" in a sentence

Fantine, however, was not grateful

Marius, meanwhile, was grateful for finally having the chance to help Thenardier, and therefore to keep the promise he had made to his father

"We're so grateful to him," said Dani, in a dreamy voice

I would be very grateful if you could come and see me this afternoon

Rose, if Gladdie overheard something - it might not seem important - I'd be so grateful to you.'

'You don't know how grateful I am to you

I'm grateful that something put a stop to that