must knit
Irregular verb: knit - knitted, knit- knitted, knit

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must knit
you must knit
he must knit
we must knit
you must knit
they must knit 	I must be knitting
you must be knitting
he must be knitting
we must be knitting
you must be knitting
they must be knitting	I must have knitted, knit
you must have knitted, knit
he must have knitted, knit
we must have knitted, knit
you must have knitted, knit
they must have knitted, knit	I must have been knitting
you must have been knitting
he must have been knitting
we must have been knitting
you must have been knitting
they must have been knitting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't knit
you mustn't knit
he mustn't knit
we mustn't knit
you mustn't knit
they mustn't knit 	I mustn't be knitting
you mustn't be knitting
he mustn't be knitting
we mustn't be knitting
you mustn't be knitting
they mustn't be knitting	I mustn't have knitted, knit
you mustn't have knitted, knit
he mustn't have knitted, knit
we mustn't have knitted, knit
you mustn't have knitted, knit
they mustn't have knitted, knit	I mustn't have been knitting
you mustn't have been knitting
he mustn't have been knitting
we mustn't have been knitting
you mustn't have been knitting
they mustn't have been knitting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I knit?
must you knit?
must he knit?
must we knit?
must you knit?
must they knit? 	must I be knitting?
must you be knitting?
must he be knitting?
must we be knitting?
must you be knitting?
must they be knitting? 	must I have knitted, knit?
must you have knitted, knit?
must he have knitted, knit?
must we have knitted, knit?
must you have knitted, knit?
must they have knitted, knit? 	must I have been knitting?
must you have been knitting?
must he have been knitting?
must we have been knitting?
must you have been knitting?
must they have been knitting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I knit?
mustn't you knit?
mustn't he knit?
mustn't we knit?
mustn't you knit?
mustn't they knit? 	mustn't I be knitting?
mustn't you be knitting?
mustn't he be knitting?
mustn't we be knitting?
mustn't you be knitting?
mustn't they be knitting? 	mustn't I have knitted, knit?
mustn't you have knitted, knit?
mustn't he have knitted, knit?
mustn't we have knitted, knit?
mustn't you have knitted, knit?
mustn't they have knitted, knit? 	mustn't I have been knitting?
mustn't you have been knitting?
mustn't he have been knitting?
mustn't we have been knitting?
mustn't you have been knitting?
mustn't they have been knitting?