I've been enthusiasming you've been enthusiasming she's been enthusiasming we've been enthusiasming you've been enthusiasming they've been enthusiasming
I'll be enthusiasming you'll be enthusiasming she'll be enthusiasming we'll be enthusiasming you'll be enthusiasming they'll be enthusiasming
Futur antérieur
I'll have enthusiasmed you'll have enthusiasmed she'll have enthusiasmed we'll have enthusiasmed you'll have enthusiasmed they'll have enthusiasmed
Futur antérieur continu
I'll have been enthusiasming you'll have been enthusiasming she'll have been enthusiasming we'll have been enthusiasming you'll have been enthusiasming they'll have been enthusiasming
I'd be enthusiasming you'd be enthusiasming she'd be enthusiasming we'd be enthusiasming you'd be enthusiasming they'd be enthusiasming
Passé
I'd have enthusiasmed you'd have enthusiasmed she'd have enthusiasmed we'd have enthusiasmed you'd have enthusiasmed they'd have enthusiasmed
Passé continu
I'd have been enthusiasming you'd have been enthusiasming she'd have been enthusiasming we'd have been enthusiasming you'd have been enthusiasming they'd have been enthusiasming