must decant
Regular verb: decant - decanted- decanted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must decant
you must decant
he must decant
we must decant
you must decant
they must decant 	I must be decanting
you must be decanting
he must be decanting
we must be decanting
you must be decanting
they must be decanting	I must have decanted
you must have decanted
he must have decanted
we must have decanted
you must have decanted
they must have decanted	I must have been decanting
you must have been decanting
he must have been decanting
we must have been decanting
you must have been decanting
they must have been decanting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not decant
you must not decant
he must not decant
we must not decant
you must not decant
they must not decant 	I must not be decanting
you must not be decanting
he must not be decanting
we must not be decanting
you must not be decanting
they must not be decanting	I must not have decanted
you must not have decanted
he must not have decanted
we must not have decanted
you must not have decanted
they must not have decanted	I must not have been decanting
you must not have been decanting
he must not have been decanting
we must not have been decanting
you must not have been decanting
they must not have been decanting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I decant?
must you decant?
must he decant?
must we decant?
must you decant?
must they decant? 	must I be decanting?
must you be decanting?
must he be decanting?
must we be decanting?
must you be decanting?
must they be decanting? 	must I have decanted?
must you have decanted?
must he have decanted?
must we have decanted?
must you have decanted?
must they have decanted? 	must I have been decanting?
must you have been decanting?
must he have been decanting?
must we have been decanting?
must you have been decanting?
must they have been decanting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not decant?
must you not decant?
must he not decant?
must we not decant?
must you not decant?
must they not decant? 	must I not be decanting?
must you not be decanting?
must he not be decanting?
must we not be decanting?
must you not be decanting?
must they not be decanting? 	must I not have decanted?
must you not have decanted?
must he not have decanted?
must we not have decanted?
must you not have decanted?
must they not have decanted? 	must I not have been decanting?
must you not have been decanting?
must he not have been decanting?
must we not have been decanting?
must you not have been decanting?
must they not have been decanting?