I can extort you can extort he can extort we can extort you can extort they can extort
V-ing form
I can be extorting you can be extorting he can be extorting we can be extorting you can be extorting they can be extorting
Perfect
I can have extorted you can have extorted he can have extorted we can have extorted you can have extorted they can have extorted
V-ing perfect
I can have been extorting you can have been extorting he can have been extorting we can have been extorting you can have been extorting they can have been extorting
Negation
Simple form
I cannot extort you cannot extort he cannot extort we cannot extort you cannot extort they cannot extort
V-ing form
I cannot be extorting you cannot be extorting he cannot be extorting we cannot be extorting you cannot be extorting they cannot be extorting
Perfect
I cannot have extorted you cannot have extorted he cannot have extorted we cannot have extorted you cannot have extorted they cannot have extorted
V-ing perfect
I cannot have been extorting you cannot have been extorting he cannot have been extorting we cannot have been extorting you cannot have been extorting they cannot have been extorting
Interrogative form
Simple form
can I extort? can you extort? can he extort? can we extort? can you extort? can they extort?
V-ing form
can I be extorting? can you be extorting? can he be extorting? can we be extorting? can you be extorting? can they be extorting?
Perfect
can I have extorted? can you have extorted? can he have extorted? can we have extorted? can you have extorted? can they have extorted?
V-ing perfect
can I have been extorting? can you have been extorting? can he have been extorting? can we have been extorting? can you have been extorting? can they have been extorting?
Interro-negative form
Simple form
can I not extort? can you not extort? can he not extort? can we not extort? can you not extort? can they not extort?
V-ing form
can I not be extorting? can you not be extorting? can he not be extorting? can we not be extorting? can you not be extorting? can they not be extorting?
Perfect
can I not have extorted? can you not have extorted? can he not have extorted? can we not have extorted? can you not have extorted? can they not have extorted?
V-ing perfect
can I not have been extorting? can you not have been extorting? can he not have been extorting? can we not have been extorting? can you not have been extorting? can they not have been extorting?