I'll be sightseeing you'll be sightseeing she'll be sightseeing we'll be sightseeing you'll be sightseeing they'll be sightseeing
Futuro anteriore
I'll have sightseed you'll have sightseed she'll have sightseed we'll have sightseed you'll have sightseed they'll have sightseed
Futuro anteriore contínuo
I'll have been sightseeing you'll have been sightseeing she'll have been sightseeing we'll have been sightseeing you'll have been sightseeing they'll have been sightseeing
I'd be sightseeing you'd be sightseeing she'd be sightseeing we'd be sightseeing you'd be sightseeing they'd be sightseeing
Passato
I'd have sightseed you'd have sightseed she'd have sightseed we'd have sightseed you'd have sightseed they'd have sightseed
Passato continuo
I'd have been sightseeing you'd have been sightseeing she'd have been sightseeing we'd have been sightseeing you'd have been sightseeing they'd have been sightseeing