I'll be endeavouring you'll be endeavouring he'll be endeavouring we'll be endeavouring you'll be endeavouring they'll be endeavouring
Futur antérieur
I'll have endeavoured you'll have endeavoured he'll have endeavoured we'll have endeavoured you'll have endeavoured they'll have endeavoured
Futur antérieur continu
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
Passé
I'd have endeavoured you'd have endeavoured he'd have endeavoured we'd have endeavoured you'd have endeavoured they'd have endeavoured
Passé continu
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