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