I can investigate you can investigate he can investigate we can investigate you can investigate they can investigate
Form mit V-ing
I can be investigating you can be investigating he can be investigating we can be investigating you can be investigating they can be investigating
Perfekt
I can have investigated you can have investigated he can have investigated we can have investigated you can have investigated they can have investigated
Perfekt mit V-ing
I can have been investigating you can have been investigating he can have been investigating we can have been investigating you can have been investigating they can have been investigating
Negation
Einfache Form
I can't investigate you can't investigate he can't investigate we can't investigate you can't investigate they can't investigate
Form mit V-ing
I can't be investigating you can't be investigating he can't be investigating we can't be investigating you can't be investigating they can't be investigating
Perfekt
I can't have investigated you can't have investigated he can't have investigated we can't have investigated you can't have investigated they can't have investigated
Perfekt mit V-ing
I can't have been investigating you can't have been investigating he can't have been investigating we can't have been investigating you can't have been investigating they can't have been investigating
Fragende Form
Einfache Form
can I investigate? can you investigate? can he investigate? can we investigate? can you investigate? can they investigate?
Form mit V-ing
can I be investigating? can you be investigating? can he be investigating? can we be investigating? can you be investigating? can they be investigating?
Perfekt
can I have investigated? can you have investigated? can he have investigated? can we have investigated? can you have investigated? can they have investigated?
Perfekt mit V-ing
can I have been investigating? can you have been investigating? can he have been investigating? can we have been investigating? can you have been investigating? can they have been investigating?
Fragende Negation Form
Einfache Form
can't I investigate? can't you investigate? can't he investigate? can't we investigate? can't you investigate? can't they investigate?
Form mit V-ing
can't I be investigating? can't you be investigating? can't he be investigating? can't we be investigating? can't you be investigating? can't they be investigating?
Perfekt
can't I have investigated? can't you have investigated? can't he have investigated? can't we have investigated? can't you have investigated? can't they have investigated?
Perfekt mit V-ing
can't I have been investigating? can't you have been investigating? can't he have been investigating? can't we have been investigating? can't you have been investigating? can't they have been investigating?