English verb conjugation
MUST HARPOON

Regular verb: harpoon - harpooned - harpooned

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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