I could observe you could observe he could observe we could observe you could observe they could observe
Form mit V-ing
I could be observing you could be observing he could be observing we could be observing you could be observing they could be observing
Perfekt
I could have observed you could have observed he could have observed we could have observed you could have observed they could have observed
Perfekt mit V-ing
I could have been observing you could have been observing he could have been observing we could have been observing you could have been observing they could have been observing
Negation
Einfache Form
I could not observe you could not observe he could not observe we could not observe you could not observe they could not observe
Form mit V-ing
I could not be observing you could not be observing he could not be observing we could not be observing you could not be observing they could not be observing
Perfekt
I could not have observed you could not have observed he could not have observed we could not have observed you could not have observed they could not have observed
Perfekt mit V-ing
I could not have been observing you could not have been observing he could not have been observing we could not have been observing you could not have been observing they could not have been observing
Fragende Form
Einfache Form
could I observe? could you observe? could he observe? could we observe? could you observe? could they observe?
Form mit V-ing
could I be observing? could you be observing? could he be observing? could we be observing? could you be observing? could they be observing?
Perfekt
could I have observed? could you have observed? could he have observed? could we have observed? could you have observed? could they have observed?
Perfekt mit V-ing
could I have been observing? could you have been observing? could he have been observing? could we have been observing? could you have been observing? could they have been observing?
Fragende Negation Form
Einfache Form
could I not observe? could you not observe? could he not observe? could we not observe? could you not observe? could they not observe?
Form mit V-ing
could I not be observing? could you not be observing? could he not be observing? could we not be observing? could you not be observing? could they not be observing?
Perfekt
could I not have observed? could you not have observed? could he not have observed? could we not have observed? could you not have observed? could they not have observed?
Perfekt mit V-ing
could I not have been observing? could you not have been observing? could he not have been observing? could we not have been observing? could you not have been observing? could they not have been observing?