must pluck
Regular verb: pluck - plucked- plucked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pluck
you must pluck
she must pluck
we must pluck
you must pluck
they must pluck 	I must be plucking
you must be plucking
she must be plucking
we must be plucking
you must be plucking
they must be plucking	I must have plucked
you must have plucked
she must have plucked
we must have plucked
you must have plucked
they must have plucked	I must have been plucking
you must have been plucking
she must have been plucking
we must have been plucking
you must have been plucking
they must have been plucking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not pluck
you must not pluck
she must not pluck
we must not pluck
you must not pluck
they must not pluck 	I must not be plucking
you must not be plucking
she must not be plucking
we must not be plucking
you must not be plucking
they must not be plucking	I must not have plucked
you must not have plucked
she must not have plucked
we must not have plucked
you must not have plucked
they must not have plucked	I must not have been plucking
you must not have been plucking
she must not have been plucking
we must not have been plucking
you must not have been plucking
they must not have been plucking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pluck?
must you pluck?
must she pluck?
must we pluck?
must you pluck?
must they pluck? 	must I be plucking?
must you be plucking?
must she be plucking?
must we be plucking?
must you be plucking?
must they be plucking? 	must I have plucked?
must you have plucked?
must she have plucked?
must we have plucked?
must you have plucked?
must they have plucked? 	must I have been plucking?
must you have been plucking?
must she have been plucking?
must we have been plucking?
must you have been plucking?
must they have been plucking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not pluck?
must you not pluck?
must she not pluck?
must we not pluck?
must you not pluck?
must they not pluck? 	must I not be plucking?
must you not be plucking?
must she not be plucking?
must we not be plucking?
must you not be plucking?
must they not be plucking? 	must I not have plucked?
must you not have plucked?
must she not have plucked?
must we not have plucked?
must you not have plucked?
must they not have plucked? 	must I not have been plucking?
must you not have been plucking?
must she not have been plucking?
must we not have been plucking?
must you not have been plucking?
must they not have been plucking?