must presweeten
Regular verb: presweeten - presweetened- presweetened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must presweeten
you must presweeten
he must presweeten
we must presweeten
you must presweeten
they must presweeten 	I must be presweetening
you must be presweetening
he must be presweetening
we must be presweetening
you must be presweetening
they must be presweetening	I must have presweetened
you must have presweetened
he must have presweetened
we must have presweetened
you must have presweetened
they must have presweetened	I must have been presweetening
you must have been presweetening
he must have been presweetening
we must have been presweetening
you must have been presweetening
they must have been presweetening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not presweeten
you must not presweeten
he must not presweeten
we must not presweeten
you must not presweeten
they must not presweeten 	I must not be presweetening
you must not be presweetening
he must not be presweetening
we must not be presweetening
you must not be presweetening
they must not be presweetening	I must not have presweetened
you must not have presweetened
he must not have presweetened
we must not have presweetened
you must not have presweetened
they must not have presweetened	I must not have been presweetening
you must not have been presweetening
he must not have been presweetening
we must not have been presweetening
you must not have been presweetening
they must not have been presweetening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I presweeten?
must you presweeten?
must he presweeten?
must we presweeten?
must you presweeten?
must they presweeten? 	must I be presweetening?
must you be presweetening?
must he be presweetening?
must we be presweetening?
must you be presweetening?
must they be presweetening? 	must I have presweetened?
must you have presweetened?
must he have presweetened?
must we have presweetened?
must you have presweetened?
must they have presweetened? 	must I have been presweetening?
must you have been presweetening?
must he have been presweetening?
must we have been presweetening?
must you have been presweetening?
must they have been presweetening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not presweeten?
must you not presweeten?
must he not presweeten?
must we not presweeten?
must you not presweeten?
must they not presweeten? 	must I not be presweetening?
must you not be presweetening?
must he not be presweetening?
must we not be presweetening?
must you not be presweetening?
must they not be presweetening? 	must I not have presweetened?
must you not have presweetened?
must he not have presweetened?
must we not have presweetened?
must you not have presweetened?
must they not have presweetened? 	must I not have been presweetening?
must you not have been presweetening?
must he not have been presweetening?
must we not have been presweetening?
must you not have been presweetening?
must they not have been presweetening?