I'll be endeavouring you'll be endeavouring he'll be endeavouring we'll be endeavouring you'll be endeavouring they'll be endeavouring
Futuro anteriore
I'll have endeavoured you'll have endeavoured he'll have endeavoured we'll have endeavoured you'll have endeavoured they'll have endeavoured
Futuro anteriore contínuo
I'll have been endeavouring you'll have been endeavouring he'll have been endeavouring we'll have been endeavouring you'll have been endeavouring they'll have been endeavouring
I'd be endeavouring you'd be endeavouring he'd be endeavouring we'd be endeavouring you'd be endeavouring they'd be endeavouring
Passato
I'd have endeavoured you'd have endeavoured he'd have endeavoured we'd have endeavoured you'd have endeavoured they'd have endeavoured
Passato continuo
I'd have been endeavouring you'd have been endeavouring he'd have been endeavouring we'd have been endeavouring you'd have been endeavouring they'd have been endeavouring