must tucker
Regular verb: tucker - tuckered- tuckered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must tucker
you must tucker
he must tucker
we must tucker
you must tucker
they must tucker 	I must be tuckering
you must be tuckering
he must be tuckering
we must be tuckering
you must be tuckering
they must be tuckering	I must have tuckered
you must have tuckered
he must have tuckered
we must have tuckered
you must have tuckered
they must have tuckered	I must have been tuckering
you must have been tuckering
he must have been tuckering
we must have been tuckering
you must have been tuckering
they must have been tuckering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't tucker
you mustn't tucker
he mustn't tucker
we mustn't tucker
you mustn't tucker
they mustn't tucker 	I mustn't be tuckering
you mustn't be tuckering
he mustn't be tuckering
we mustn't be tuckering
you mustn't be tuckering
they mustn't be tuckering	I mustn't have tuckered
you mustn't have tuckered
he mustn't have tuckered
we mustn't have tuckered
you mustn't have tuckered
they mustn't have tuckered	I mustn't have been tuckering
you mustn't have been tuckering
he mustn't have been tuckering
we mustn't have been tuckering
you mustn't have been tuckering
they mustn't have been tuckering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I tucker?
must you tucker?
must he tucker?
must we tucker?
must you tucker?
must they tucker? 	must I be tuckering?
must you be tuckering?
must he be tuckering?
must we be tuckering?
must you be tuckering?
must they be tuckering? 	must I have tuckered?
must you have tuckered?
must he have tuckered?
must we have tuckered?
must you have tuckered?
must they have tuckered? 	must I have been tuckering?
must you have been tuckering?
must he have been tuckering?
must we have been tuckering?
must you have been tuckering?
must they have been tuckering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I tucker?
mustn't you tucker?
mustn't he tucker?
mustn't we tucker?
mustn't you tucker?
mustn't they tucker? 	mustn't I be tuckering?
mustn't you be tuckering?
mustn't he be tuckering?
mustn't we be tuckering?
mustn't you be tuckering?
mustn't they be tuckering? 	mustn't I have tuckered?
mustn't you have tuckered?
mustn't he have tuckered?
mustn't we have tuckered?
mustn't you have tuckered?
mustn't they have tuckered? 	mustn't I have been tuckering?
mustn't you have been tuckering?
mustn't he have been tuckering?
mustn't we have been tuckering?
mustn't you have been tuckering?
mustn't they have been tuckering?