English verb conjugation
CAN HARPOON

Regular verb: harpoon - harpooned - harpooned

Affirmation

Simple form	V-ing form
I can harpoon you can harpoon he can harpoon we can harpoon you can harpoon they can harpoon	I can be harpooning you can be harpooning he can be harpooning we can be harpooning you can be harpooning they can be harpooning
Perfect	V-ing perfect
I can have harpooned you can have harpooned he can have harpooned we can have harpooned you can have harpooned they can have harpooned	I can have been harpooning you can have been harpooning he can have been harpooning we can have been harpooning you can have been harpooning they can have been harpooning

Negation

Simple form	V-ing form
I can't harpoon you can't harpoon he can't harpoon we can't harpoon you can't harpoon they can't harpoon	I can't be harpooning you can't be harpooning he can't be harpooning we can't be harpooning you can't be harpooning they can't be harpooning
Perfect	V-ing perfect
I can't have harpooned you can't have harpooned he can't have harpooned we can't have harpooned you can't have harpooned they can't have harpooned	I can't have been harpooning you can't have been harpooning he can't have been harpooning we can't have been harpooning you can't have been harpooning they can't have been harpooning

Interrogative form

Simple form	V-ing form
can I harpoon? can you harpoon? can he harpoon? can we harpoon? can you harpoon? can they harpoon?	can I be harpooning? can you be harpooning? can he be harpooning? can we be harpooning? can you be harpooning? can they be harpooning?
Perfect	V-ing perfect
can I have harpooned? can you have harpooned? can he have harpooned? can we have harpooned? can you have harpooned? can they have harpooned?	can I have been harpooning? can you have been harpooning? can he have been harpooning? can we have been harpooning? can you have been harpooning? can they have been harpooning?

Interro-negative form

Simple form	V-ing form
can't I harpoon? can't you harpoon? can't he harpoon? can't we harpoon? can't you harpoon? can't they harpoon?	can't I be harpooning? can't you be harpooning? can't he be harpooning? can't we be harpooning? can't you be harpooning? can't they be harpooning?
Perfect	V-ing perfect
can't I have harpooned? can't you have harpooned? can't he have harpooned? can't we have harpooned? can't you have harpooned? can't they have harpooned?	can't I have been harpooning? can't you have been harpooning? can't he have been harpooning? can't we have been harpooning? can't you have been harpooning? can't they have been harpooning?