I can pervert you can pervert he can pervert we can pervert you can pervert they can pervert
V-ing form
I can be perverting you can be perverting he can be perverting we can be perverting you can be perverting they can be perverting
Perfect
I can have perverted you can have perverted he can have perverted we can have perverted you can have perverted they can have perverted
V-ing perfect
I can have been perverting you can have been perverting he can have been perverting we can have been perverting you can have been perverting they can have been perverting
Negation
Simple form
I cannot pervert you cannot pervert he cannot pervert we cannot pervert you cannot pervert they cannot pervert
V-ing form
I cannot be perverting you cannot be perverting he cannot be perverting we cannot be perverting you cannot be perverting they cannot be perverting
Perfect
I cannot have perverted you cannot have perverted he cannot have perverted we cannot have perverted you cannot have perverted they cannot have perverted
V-ing perfect
I cannot have been perverting you cannot have been perverting he cannot have been perverting we cannot have been perverting you cannot have been perverting they cannot have been perverting
Interrogative form
Simple form
can I pervert? can you pervert? can he pervert? can we pervert? can you pervert? can they pervert?
V-ing form
can I be perverting? can you be perverting? can he be perverting? can we be perverting? can you be perverting? can they be perverting?
Perfect
can I have perverted? can you have perverted? can he have perverted? can we have perverted? can you have perverted? can they have perverted?
V-ing perfect
can I have been perverting? can you have been perverting? can he have been perverting? can we have been perverting? can you have been perverting? can they have been perverting?
Interro-negative form
Simple form
can I not pervert? can you not pervert? can he not pervert? can we not pervert? can you not pervert? can they not pervert?
V-ing form
can I not be perverting? can you not be perverting? can he not be perverting? can we not be perverting? can you not be perverting? can they not be perverting?
Perfect
can I not have perverted? can you not have perverted? can he not have perverted? can we not have perverted? can you not have perverted? can they not have perverted?
V-ing perfect
can I not have been perverting? can you not have been perverting? can he not have been perverting? can we not have been perverting? can you not have been perverting? can they not have been perverting?