must windlass
Regular verb: windlass - windlassed- windlassed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must windlass
you must windlass
she must windlass
we must windlass
you must windlass
they must windlass 	I must be windlassing
you must be windlassing
she must be windlassing
we must be windlassing
you must be windlassing
they must be windlassing	I must have windlassed
you must have windlassed
she must have windlassed
we must have windlassed
you must have windlassed
they must have windlassed	I must have been windlassing
you must have been windlassing
she must have been windlassing
we must have been windlassing
you must have been windlassing
they must have been windlassing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not windlass
you must not windlass
she must not windlass
we must not windlass
you must not windlass
they must not windlass 	I must not be windlassing
you must not be windlassing
she must not be windlassing
we must not be windlassing
you must not be windlassing
they must not be windlassing	I must not have windlassed
you must not have windlassed
she must not have windlassed
we must not have windlassed
you must not have windlassed
they must not have windlassed	I must not have been windlassing
you must not have been windlassing
she must not have been windlassing
we must not have been windlassing
you must not have been windlassing
they must not have been windlassing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I windlass?
must you windlass?
must she windlass?
must we windlass?
must you windlass?
must they windlass? 	must I be windlassing?
must you be windlassing?
must she be windlassing?
must we be windlassing?
must you be windlassing?
must they be windlassing? 	must I have windlassed?
must you have windlassed?
must she have windlassed?
must we have windlassed?
must you have windlassed?
must they have windlassed? 	must I have been windlassing?
must you have been windlassing?
must she have been windlassing?
must we have been windlassing?
must you have been windlassing?
must they have been windlassing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not windlass?
must you not windlass?
must she not windlass?
must we not windlass?
must you not windlass?
must they not windlass? 	must I not be windlassing?
must you not be windlassing?
must she not be windlassing?
must we not be windlassing?
must you not be windlassing?
must they not be windlassing? 	must I not have windlassed?
must you not have windlassed?
must she not have windlassed?
must we not have windlassed?
must you not have windlassed?
must they not have windlassed? 	must I not have been windlassing?
must you not have been windlassing?
must she not have been windlassing?
must we not have been windlassing?
must you not have been windlassing?
must they not have been windlassing?