must imprint
Regular verb: imprint - imprinted- imprinted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must imprint
you must imprint
he must imprint
we must imprint
you must imprint
they must imprint 	I must be imprinting
you must be imprinting
he must be imprinting
we must be imprinting
you must be imprinting
they must be imprinting	I must have imprinted
you must have imprinted
he must have imprinted
we must have imprinted
you must have imprinted
they must have imprinted	I must have been imprinting
you must have been imprinting
he must have been imprinting
we must have been imprinting
you must have been imprinting
they must have been imprinting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not imprint
you must not imprint
he must not imprint
we must not imprint
you must not imprint
they must not imprint 	I must not be imprinting
you must not be imprinting
he must not be imprinting
we must not be imprinting
you must not be imprinting
they must not be imprinting	I must not have imprinted
you must not have imprinted
he must not have imprinted
we must not have imprinted
you must not have imprinted
they must not have imprinted	I must not have been imprinting
you must not have been imprinting
he must not have been imprinting
we must not have been imprinting
you must not have been imprinting
they must not have been imprinting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I imprint?
must you imprint?
must he imprint?
must we imprint?
must you imprint?
must they imprint? 	must I be imprinting?
must you be imprinting?
must he be imprinting?
must we be imprinting?
must you be imprinting?
must they be imprinting? 	must I have imprinted?
must you have imprinted?
must he have imprinted?
must we have imprinted?
must you have imprinted?
must they have imprinted? 	must I have been imprinting?
must you have been imprinting?
must he have been imprinting?
must we have been imprinting?
must you have been imprinting?
must they have been imprinting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not imprint?
must you not imprint?
must he not imprint?
must we not imprint?
must you not imprint?
must they not imprint? 	must I not be imprinting?
must you not be imprinting?
must he not be imprinting?
must we not be imprinting?
must you not be imprinting?
must they not be imprinting? 	must I not have imprinted?
must you not have imprinted?
must he not have imprinted?
must we not have imprinted?
must you not have imprinted?
must they not have imprinted? 	must I not have been imprinting?
must you not have been imprinting?
must he not have been imprinting?
must we not have been imprinting?
must you not have been imprinting?
must they not have been imprinting?