I'd be concentrating you'd be concentrating she'd be concentrating we'd be concentrating you'd be concentrating they'd be concentrating
Perfect
I would've concentrated you would've concentrated she would've concentrated we would've concentrated you would've concentrated they would've concentrated
V-ing perfect
I would've been concentrating you would've been concentrating she would've been concentrating we would've been concentrating you would've been concentrating they would've been concentrating
Negation
Simple form
I wouldn't concentrate you wouldn't concentrate she wouldn't concentrate we wouldn't concentrate you wouldn't concentrate they wouldn't concentrate
V-ing form
I wouldn't be concentrating you wouldn't be concentrating she wouldn't be concentrating we wouldn't be concentrating you wouldn't be concentrating they wouldn't be concentrating
Perfect
I wouldn't have concentrated you wouldn't have concentrated she wouldn't have concentrated we wouldn't have concentrated you wouldn't have concentrated they wouldn't have concentrated
V-ing perfect
I wouldn't have been concentrating you wouldn't have been concentrating she wouldn't have been concentrating we wouldn't have been concentrating you wouldn't have been concentrating they wouldn't have been concentrating
Interrogative form
Simple form
would I concentrate? would you concentrate? would she concentrate? would we concentrate? would you concentrate? would they concentrate?
V-ing form
would I be concentrating? would you be concentrating? would she be concentrating? would we be concentrating? would you be concentrating? would they be concentrating?
Perfect
would I have concentrated? would you have concentrated? would she have concentrated? would we have concentrated? would you have concentrated? would they have concentrated?
V-ing perfect
would I have been concentrating? would you have been concentrating? would she have been concentrating? would we have been concentrating? would you have been concentrating? would they have been concentrating?
Interro-negative form
Simple form
wouldn't I concentrate? wouldn't you concentrate? wouldn't she concentrate? wouldn't we concentrate? wouldn't you concentrate? wouldn't they concentrate?
V-ing form
wouldn't I be concentrating? wouldn't you be concentrating? wouldn't she be concentrating? wouldn't we be concentrating? wouldn't you be concentrating? wouldn't they be concentrating?
Perfect
wouldn't I have concentrated? wouldn't you have concentrated? wouldn't she have concentrated? wouldn't we have concentrated? wouldn't you have concentrated? wouldn't they have concentrated?
V-ing perfect
wouldn't I have been concentrating? wouldn't you have been concentrating? wouldn't she have been concentrating? wouldn't we have been concentrating? wouldn't you have been concentrating? wouldn't they have been concentrating?