I've been concertinaing you've been concertinaing she's been concertinaing we've been concertinaing you've been concertinaing they've been concertinaing
I'll be concertinaing you'll be concertinaing she'll be concertinaing we'll be concertinaing you'll be concertinaing they'll be concertinaing
futuro perfeito
I'll have concertinaed you'll have concertinaed she'll have concertinaed we'll have concertinaed you'll have concertinaed they'll have concertinaed
futuro perfeito contínuo
I'll have been concertinaing you'll have been concertinaing she'll have been concertinaing we'll have been concertinaing you'll have been concertinaing they'll have been concertinaing
I'd be concertinaing you'd be concertinaing she'd be concertinaing we'd be concertinaing you'd be concertinaing they'd be concertinaing
Passado
I'd have concertinaed you'd have concertinaed she'd have concertinaed we'd have concertinaed you'd have concertinaed they'd have concertinaed
Passado contínuo
I'd have been concertinaing you'd have been concertinaing she'd have been concertinaing we'd have been concertinaing you'd have been concertinaing they'd have been concertinaing