I'll be sniggering you'll be sniggering he'll be sniggering we'll be sniggering you'll be sniggering they'll be sniggering
Futur antérieur
I'll have sniggered you'll have sniggered he'll have sniggered we'll have sniggered you'll have sniggered they'll have sniggered
Futur antérieur continu
I'll have been sniggering you'll have been sniggering he'll have been sniggering we'll have been sniggering you'll have been sniggering they'll have been sniggering
I'd be sniggering you'd be sniggering he'd be sniggering we'd be sniggering you'd be sniggering they'd be sniggering
Passé
I'd have sniggered you'd have sniggered he'd have sniggered we'd have sniggered you'd have sniggered they'd have sniggered
Passé continu
I'd have been sniggering you'd have been sniggering he'd have been sniggering we'd have been sniggering you'd have been sniggering they'd have been sniggering