must supple
Regular verb: supple - suppled- suppled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must supple
you must supple
he must supple
we must supple
you must supple
they must supple 	I must be suppling
you must be suppling
he must be suppling
we must be suppling
you must be suppling
they must be suppling	I must have suppled
you must have suppled
he must have suppled
we must have suppled
you must have suppled
they must have suppled	I must have been suppling
you must have been suppling
he must have been suppling
we must have been suppling
you must have been suppling
they must have been suppling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't supple
you mustn't supple
he mustn't supple
we mustn't supple
you mustn't supple
they mustn't supple 	I mustn't be suppling
you mustn't be suppling
he mustn't be suppling
we mustn't be suppling
you mustn't be suppling
they mustn't be suppling	I mustn't have suppled
you mustn't have suppled
he mustn't have suppled
we mustn't have suppled
you mustn't have suppled
they mustn't have suppled	I mustn't have been suppling
you mustn't have been suppling
he mustn't have been suppling
we mustn't have been suppling
you mustn't have been suppling
they mustn't have been suppling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I supple?
must you supple?
must he supple?
must we supple?
must you supple?
must they supple? 	must I be suppling?
must you be suppling?
must he be suppling?
must we be suppling?
must you be suppling?
must they be suppling? 	must I have suppled?
must you have suppled?
must he have suppled?
must we have suppled?
must you have suppled?
must they have suppled? 	must I have been suppling?
must you have been suppling?
must he have been suppling?
must we have been suppling?
must you have been suppling?
must they have been suppling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I supple?
mustn't you supple?
mustn't he supple?
mustn't we supple?
mustn't you supple?
mustn't they supple? 	mustn't I be suppling?
mustn't you be suppling?
mustn't he be suppling?
mustn't we be suppling?
mustn't you be suppling?
mustn't they be suppling? 	mustn't I have suppled?
mustn't you have suppled?
mustn't he have suppled?
mustn't we have suppled?
mustn't you have suppled?
mustn't they have suppled? 	mustn't I have been suppling?
mustn't you have been suppling?
mustn't he have been suppling?
mustn't we have been suppling?
mustn't you have been suppling?
mustn't they have been suppling?