I can breed you can breed he can breed we can breed you can breed they can breed
V-ing form
I can be breeding you can be breeding he can be breeding we can be breeding you can be breeding they can be breeding
Perfect
I can have bred you can have bred he can have bred we can have bred you can have bred they can have bred
V-ing perfect
I can have been breeding you can have been breeding he can have been breeding we can have been breeding you can have been breeding they can have been breeding
Negation
Simple form
I cannot breed you cannot breed he cannot breed we cannot breed you cannot breed they cannot breed
V-ing form
I cannot be breeding you cannot be breeding he cannot be breeding we cannot be breeding you cannot be breeding they cannot be breeding
Perfect
I cannot have bred you cannot have bred he cannot have bred we cannot have bred you cannot have bred they cannot have bred
V-ing perfect
I cannot have been breeding you cannot have been breeding he cannot have been breeding we cannot have been breeding you cannot have been breeding they cannot have been breeding
Interrogative form
Simple form
can I breed? can you breed? can he breed? can we breed? can you breed? can they breed?
V-ing form
can I be breeding? can you be breeding? can he be breeding? can we be breeding? can you be breeding? can they be breeding?
Perfect
can I have bred? can you have bred? can he have bred? can we have bred? can you have bred? can they have bred?
V-ing perfect
can I have been breeding? can you have been breeding? can he have been breeding? can we have been breeding? can you have been breeding? can they have been breeding?
Interro-negative form
Simple form
can I not breed? can you not breed? can he not breed? can we not breed? can you not breed? can they not breed?
V-ing form
can I not be breeding? can you not be breeding? can he not be breeding? can we not be breeding? can you not be breeding? can they not be breeding?
Perfect
can I not have bred? can you not have bred? can he not have bred? can we not have bred? can you not have bred? can they not have bred?
V-ing perfect
can I not have been breeding? can you not have been breeding? can he not have been breeding? can we not have been breeding? can you not have been breeding? can they not have been breeding?