Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must knit knit you must knit knit he must knit knit we must knit knit you must knit knit they must knit knit
V-ing form
I must be knit kniting you must be knit kniting he must be knit kniting we must be knit kniting you must be knit kniting they must be knit kniting
Perfect
I must have knit knited you must have knit knited he must have knit knited we must have knit knited you must have knit knited they must have knit knited
V-ing perfect
I must have been knit kniting you must have been knit kniting he must have been knit kniting we must have been knit kniting you must have been knit kniting they must have been knit kniting
Negation
Simple form
I must not knit knit you must not knit knit he must not knit knit we must not knit knit you must not knit knit they must not knit knit
V-ing form
I must not be knit kniting you must not be knit kniting he must not be knit kniting we must not be knit kniting you must not be knit kniting they must not be knit kniting
Perfect
I must not have knit knited you must not have knit knited he must not have knit knited we must not have knit knited you must not have knit knited they must not have knit knited
V-ing perfect
I must not have been knit kniting you must not have been knit kniting he must not have been knit kniting we must not have been knit kniting you must not have been knit kniting they must not have been knit kniting
Interrogative form
Simple form
must I knit knit? must you knit knit? must he knit knit? must we knit knit? must you knit knit? must they knit knit?
V-ing form
must I be knit kniting? must you be knit kniting? must he be knit kniting? must we be knit kniting? must you be knit kniting? must they be knit kniting?
Perfect
must I have knit knited? must you have knit knited? must he have knit knited? must we have knit knited? must you have knit knited? must they have knit knited?
V-ing perfect
must I have been knit kniting? must you have been knit kniting? must he have been knit kniting? must we have been knit kniting? must you have been knit kniting? must they have been knit kniting?
Interro-negative form
Simple form
must I not knit knit? must you not knit knit? must he not knit knit? must we not knit knit? must you not knit knit? must they not knit knit?
V-ing form
must I not be knit kniting? must you not be knit kniting? must he not be knit kniting? must we not be knit kniting? must you not be knit kniting? must they not be knit kniting?
Perfect
must I not have knit knited? must you not have knit knited? must he not have knit knited? must we not have knit knited? must you not have knit knited? must they not have knit knited?
V-ing perfect
must I not have been knit kniting? must you not have been knit kniting? must he not have been knit kniting? must we not have been knit kniting? must you not have been knit kniting? must they not have been knit kniting?