I'd be uderstate sthing you'd be uderstate sthing he'd be uderstate sthing we'd be uderstate sthing you'd be uderstate sthing they'd be uderstate sthing
Perfect
I would've uderstate sthed you would've uderstate sthed he would've uderstate sthed we would've uderstate sthed you would've uderstate sthed they would've uderstate sthed
V-ing perfect
I would've been uderstate sthing you would've been uderstate sthing he would've been uderstate sthing we would've been uderstate sthing you would've been uderstate sthing they would've been uderstate sthing
Negation
Simple form
I wouldn't uderstate sth you wouldn't uderstate sth he wouldn't uderstate sth we wouldn't uderstate sth you wouldn't uderstate sth they wouldn't uderstate sth
V-ing form
I wouldn't be uderstate sthing you wouldn't be uderstate sthing he wouldn't be uderstate sthing we wouldn't be uderstate sthing you wouldn't be uderstate sthing they wouldn't be uderstate sthing
Perfect
I wouldn't have uderstate sthed you wouldn't have uderstate sthed he wouldn't have uderstate sthed we wouldn't have uderstate sthed you wouldn't have uderstate sthed they wouldn't have uderstate sthed
V-ing perfect
I wouldn't have been uderstate sthing you wouldn't have been uderstate sthing he wouldn't have been uderstate sthing we wouldn't have been uderstate sthing you wouldn't have been uderstate sthing they wouldn't have been uderstate sthing
Interrogative form
Simple form
would I uderstate sth? would you uderstate sth? would he uderstate sth? would we uderstate sth? would you uderstate sth? would they uderstate sth?
V-ing form
would I be uderstate sthing? would you be uderstate sthing? would he be uderstate sthing? would we be uderstate sthing? would you be uderstate sthing? would they be uderstate sthing?
Perfect
would I have uderstate sthed? would you have uderstate sthed? would he have uderstate sthed? would we have uderstate sthed? would you have uderstate sthed? would they have uderstate sthed?
V-ing perfect
would I have been uderstate sthing? would you have been uderstate sthing? would he have been uderstate sthing? would we have been uderstate sthing? would you have been uderstate sthing? would they have been uderstate sthing?
Interro-negative form
Simple form
wouldn't I uderstate sth? wouldn't you uderstate sth? wouldn't he uderstate sth? wouldn't we uderstate sth? wouldn't you uderstate sth? wouldn't they uderstate sth?
V-ing form
wouldn't I be uderstate sthing? wouldn't you be uderstate sthing? wouldn't he be uderstate sthing? wouldn't we be uderstate sthing? wouldn't you be uderstate sthing? wouldn't they be uderstate sthing?
Perfect
wouldn't I have uderstate sthed? wouldn't you have uderstate sthed? wouldn't he have uderstate sthed? wouldn't we have uderstate sthed? wouldn't you have uderstate sthed? wouldn't they have uderstate sthed?
V-ing perfect
wouldn't I have been uderstate sthing? wouldn't you have been uderstate sthing? wouldn't he have been uderstate sthing? wouldn't we have been uderstate sthing? wouldn't you have been uderstate sthing? wouldn't they have been uderstate sthing?