must harpoon harpoon
Regular verb: harpoon harpoon - harpoon harpooned- harpoon harpooned

, this verb may not exist. Conjugation is given as example.

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not harpoon harpoon
you must not harpoon harpoon
he must not harpoon harpoon
we must not harpoon harpoon
you must not harpoon harpoon
they must not harpoon harpoon 	I must not be harpoon harpooning
you must not be harpoon harpooning
he must not be harpoon harpooning
we must not be harpoon harpooning
you must not be harpoon harpooning
they must not be harpoon harpooning	I must not have harpoon harpooned
you must not have harpoon harpooned
he must not have harpoon harpooned
we must not have harpoon harpooned
you must not have harpoon harpooned
they must not have harpoon harpooned	I must not have been harpoon harpooning
you must not have been harpoon harpooning
he must not have been harpoon harpooning
we must not have been harpoon harpooning
you must not have been harpoon harpooning
they must not have been harpoon harpooning	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not harpoon harpoon?
must you not harpoon harpoon?
must he not harpoon harpoon?
must we not harpoon harpoon?
must you not harpoon harpoon?
must they not harpoon harpoon? 	must I not be harpoon harpooning?
must you not be harpoon harpooning?
must he not be harpoon harpooning?
must we not be harpoon harpooning?
must you not be harpoon harpooning?
must they not be harpoon harpooning? 	must I not have harpoon harpooned?
must you not have harpoon harpooned?
must he not have harpoon harpooned?
must we not have harpoon harpooned?
must you not have harpoon harpooned?
must they not have harpoon harpooned? 	must I not have been harpoon harpooning?
must you not have been harpoon harpooning?
must he not have been harpoon harpooning?
must we not have been harpoon harpooning?
must you not have been harpoon harpooning?
must they not have been harpoon harpooning?