must slink
Irregular verb: slink - slunk- slunk

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slink
you must slink
he must slink
we must slink
you must slink
they must slink 	I must be slinking
you must be slinking
he must be slinking
we must be slinking
you must be slinking
they must be slinking	I must have slunk
you must have slunk
he must have slunk
we must have slunk
you must have slunk
they must have slunk	I must have been slinking
you must have been slinking
he must have been slinking
we must have been slinking
you must have been slinking
they must have been slinking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't slink
you mustn't slink
he mustn't slink
we mustn't slink
you mustn't slink
they mustn't slink 	I mustn't be slinking
you mustn't be slinking
he mustn't be slinking
we mustn't be slinking
you mustn't be slinking
they mustn't be slinking	I mustn't have slunk
you mustn't have slunk
he mustn't have slunk
we mustn't have slunk
you mustn't have slunk
they mustn't have slunk	I mustn't have been slinking
you mustn't have been slinking
he mustn't have been slinking
we mustn't have been slinking
you mustn't have been slinking
they mustn't have been slinking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slink?
must you slink?
must he slink?
must we slink?
must you slink?
must they slink? 	must I be slinking?
must you be slinking?
must he be slinking?
must we be slinking?
must you be slinking?
must they be slinking? 	must I have slunk?
must you have slunk?
must he have slunk?
must we have slunk?
must you have slunk?
must they have slunk? 	must I have been slinking?
must you have been slinking?
must he have been slinking?
must we have been slinking?
must you have been slinking?
must they have been slinking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I slink?
mustn't you slink?
mustn't he slink?
mustn't we slink?
mustn't you slink?
mustn't they slink? 	mustn't I be slinking?
mustn't you be slinking?
mustn't he be slinking?
mustn't we be slinking?
mustn't you be slinking?
mustn't they be slinking? 	mustn't I have slunk?
mustn't you have slunk?
mustn't he have slunk?
mustn't we have slunk?
mustn't you have slunk?
mustn't they have slunk? 	mustn't I have been slinking?
mustn't you have been slinking?
mustn't he have been slinking?
mustn't we have been slinking?
mustn't you have been slinking?
mustn't they have been slinking?