I'll be fevering you'll be fevering he'll be fevering we'll be fevering you'll be fevering they'll be fevering
Futur antérieur
I'll have fevered you'll have fevered he'll have fevered we'll have fevered you'll have fevered they'll have fevered
Futur antérieur continu
I'll have been fevering you'll have been fevering he'll have been fevering we'll have been fevering you'll have been fevering they'll have been fevering