must emulsify
Regular verb: emulsify - emulsified- emulsified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must emulsify
you must emulsify
he must emulsify
we must emulsify
you must emulsify
they must emulsify 	I must be emulsifying
you must be emulsifying
he must be emulsifying
we must be emulsifying
you must be emulsifying
they must be emulsifying	I must have emulsified
you must have emulsified
he must have emulsified
we must have emulsified
you must have emulsified
they must have emulsified	I must have been emulsifying
you must have been emulsifying
he must have been emulsifying
we must have been emulsifying
you must have been emulsifying
they must have been emulsifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not emulsify
you must not emulsify
he must not emulsify
we must not emulsify
you must not emulsify
they must not emulsify 	I must not be emulsifying
you must not be emulsifying
he must not be emulsifying
we must not be emulsifying
you must not be emulsifying
they must not be emulsifying	I must not have emulsified
you must not have emulsified
he must not have emulsified
we must not have emulsified
you must not have emulsified
they must not have emulsified	I must not have been emulsifying
you must not have been emulsifying
he must not have been emulsifying
we must not have been emulsifying
you must not have been emulsifying
they must not have been emulsifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I emulsify?
must you emulsify?
must he emulsify?
must we emulsify?
must you emulsify?
must they emulsify? 	must I be emulsifying?
must you be emulsifying?
must he be emulsifying?
must we be emulsifying?
must you be emulsifying?
must they be emulsifying? 	must I have emulsified?
must you have emulsified?
must he have emulsified?
must we have emulsified?
must you have emulsified?
must they have emulsified? 	must I have been emulsifying?
must you have been emulsifying?
must he have been emulsifying?
must we have been emulsifying?
must you have been emulsifying?
must they have been emulsifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not emulsify?
must you not emulsify?
must he not emulsify?
must we not emulsify?
must you not emulsify?
must they not emulsify? 	must I not be emulsifying?
must you not be emulsifying?
must he not be emulsifying?
must we not be emulsifying?
must you not be emulsifying?
must they not be emulsifying? 	must I not have emulsified?
must you not have emulsified?
must he not have emulsified?
must we not have emulsified?
must you not have emulsified?
must they not have emulsified? 	must I not have been emulsifying?
must you not have been emulsifying?
must he not have been emulsifying?
must we not have been emulsifying?
must you not have been emulsifying?
must they not have been emulsifying?