I'd be ventilating you'd be ventilating he'd be ventilating we'd be ventilating you'd be ventilating they'd be ventilating
Perfect
I would've ventilated you would've ventilated he would've ventilated we would've ventilated you would've ventilated they would've ventilated
V-ing perfect
I would've been ventilating you would've been ventilating he would've been ventilating we would've been ventilating you would've been ventilating they would've been ventilating
Negation
Simple form
I wouldn't ventilate you wouldn't ventilate he wouldn't ventilate we wouldn't ventilate you wouldn't ventilate they wouldn't ventilate
V-ing form
I wouldn't be ventilating you wouldn't be ventilating he wouldn't be ventilating we wouldn't be ventilating you wouldn't be ventilating they wouldn't be ventilating
Perfect
I wouldn't have ventilated you wouldn't have ventilated he wouldn't have ventilated we wouldn't have ventilated you wouldn't have ventilated they wouldn't have ventilated
V-ing perfect
I wouldn't have been ventilating you wouldn't have been ventilating he wouldn't have been ventilating we wouldn't have been ventilating you wouldn't have been ventilating they wouldn't have been ventilating
Interrogative form
Simple form
would I ventilate? would you ventilate? would he ventilate? would we ventilate? would you ventilate? would they ventilate?
V-ing form
would I be ventilating? would you be ventilating? would he be ventilating? would we be ventilating? would you be ventilating? would they be ventilating?
Perfect
would I have ventilated? would you have ventilated? would he have ventilated? would we have ventilated? would you have ventilated? would they have ventilated?
V-ing perfect
would I have been ventilating? would you have been ventilating? would he have been ventilating? would we have been ventilating? would you have been ventilating? would they have been ventilating?
Interro-negative form
Simple form
wouldn't I ventilate? wouldn't you ventilate? wouldn't he ventilate? wouldn't we ventilate? wouldn't you ventilate? wouldn't they ventilate?
V-ing form
wouldn't I be ventilating? wouldn't you be ventilating? wouldn't he be ventilating? wouldn't we be ventilating? wouldn't you be ventilating? wouldn't they be ventilating?
Perfect
wouldn't I have ventilated? wouldn't you have ventilated? wouldn't he have ventilated? wouldn't we have ventilated? wouldn't you have ventilated? wouldn't they have ventilated?
V-ing perfect
wouldn't I have been ventilating? wouldn't you have been ventilating? wouldn't he have been ventilating? wouldn't we have been ventilating? wouldn't you have been ventilating? wouldn't they have been ventilating?