must sugar
Regular verb: sugar - sugared- sugared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must sugar
you must sugar
he must sugar
we must sugar
you must sugar
they must sugar 	I must be sugaring
you must be sugaring
he must be sugaring
we must be sugaring
you must be sugaring
they must be sugaring	I must have sugared
you must have sugared
he must have sugared
we must have sugared
you must have sugared
they must have sugared	I must have been sugaring
you must have been sugaring
he must have been sugaring
we must have been sugaring
you must have been sugaring
they must have been sugaring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not sugar
you must not sugar
he must not sugar
we must not sugar
you must not sugar
they must not sugar 	I must not be sugaring
you must not be sugaring
he must not be sugaring
we must not be sugaring
you must not be sugaring
they must not be sugaring	I must not have sugared
you must not have sugared
he must not have sugared
we must not have sugared
you must not have sugared
they must not have sugared	I must not have been sugaring
you must not have been sugaring
he must not have been sugaring
we must not have been sugaring
you must not have been sugaring
they must not have been sugaring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I sugar?
must you sugar?
must he sugar?
must we sugar?
must you sugar?
must they sugar? 	must I be sugaring?
must you be sugaring?
must he be sugaring?
must we be sugaring?
must you be sugaring?
must they be sugaring? 	must I have sugared?
must you have sugared?
must he have sugared?
must we have sugared?
must you have sugared?
must they have sugared? 	must I have been sugaring?
must you have been sugaring?
must he have been sugaring?
must we have been sugaring?
must you have been sugaring?
must they have been sugaring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not sugar?
must you not sugar?
must he not sugar?
must we not sugar?
must you not sugar?
must they not sugar? 	must I not be sugaring?
must you not be sugaring?
must he not be sugaring?
must we not be sugaring?
must you not be sugaring?
must they not be sugaring? 	must I not have sugared?
must you not have sugared?
must he not have sugared?
must we not have sugared?
must you not have sugared?
must they not have sugared? 	must I not have been sugaring?
must you not have been sugaring?
must he not have been sugaring?
must we not have been sugaring?
must you not have been sugaring?
must they not have been sugaring?