I can kernel you can kernel he can kernel we can kernel you can kernel they can kernel
V-ing form
I can be kerneling you can be kerneling he can be kerneling we can be kerneling you can be kerneling they can be kerneling
Perfect
I can have kerneled you can have kerneled he can have kerneled we can have kerneled you can have kerneled they can have kerneled
V-ing perfect
I can have been kerneling you can have been kerneling he can have been kerneling we can have been kerneling you can have been kerneling they can have been kerneling
Negation
Simple form
I cannot kernel you cannot kernel he cannot kernel we cannot kernel you cannot kernel they cannot kernel
V-ing form
I cannot be kerneling you cannot be kerneling he cannot be kerneling we cannot be kerneling you cannot be kerneling they cannot be kerneling
Perfect
I cannot have kerneled you cannot have kerneled he cannot have kerneled we cannot have kerneled you cannot have kerneled they cannot have kerneled
V-ing perfect
I cannot have been kerneling you cannot have been kerneling he cannot have been kerneling we cannot have been kerneling you cannot have been kerneling they cannot have been kerneling
Interrogative form
Simple form
can I kernel? can you kernel? can he kernel? can we kernel? can you kernel? can they kernel?
V-ing form
can I be kerneling? can you be kerneling? can he be kerneling? can we be kerneling? can you be kerneling? can they be kerneling?
Perfect
can I have kerneled? can you have kerneled? can he have kerneled? can we have kerneled? can you have kerneled? can they have kerneled?
V-ing perfect
can I have been kerneling? can you have been kerneling? can he have been kerneling? can we have been kerneling? can you have been kerneling? can they have been kerneling?
Interro-negative form
Simple form
can I not kernel? can you not kernel? can he not kernel? can we not kernel? can you not kernel? can they not kernel?
V-ing form
can I not be kerneling? can you not be kerneling? can he not be kerneling? can we not be kerneling? can you not be kerneling? can they not be kerneling?
Perfect
can I not have kerneled? can you not have kerneled? can he not have kerneled? can we not have kerneled? can you not have kerneled? can they not have kerneled?
V-ing perfect
can I not have been kerneling? can you not have been kerneling? can he not have been kerneling? can we not have been kerneling? can you not have been kerneling? can they not have been kerneling?