English verb conjugation
MUST INTER

Regular verb: inter - interred - interred

Affirmation

Simple form	V-ing form
I must inter you must inter she must inter we must inter you must inter they must inter	I must be interring you must be interring she must be interring we must be interring you must be interring they must be interring
Perfect	V-ing perfect
I must have interred you must have interred she must have interred we must have interred you must have interred they must have interred	I must have been interring you must have been interring she must have been interring we must have been interring you must have been interring they must have been interring

Negation

Simple form	V-ing form
I must not inter you must not inter she must not inter we must not inter you must not inter they must not inter	I must not be interring you must not be interring she must not be interring we must not be interring you must not be interring they must not be interring
Perfect	V-ing perfect
I must not have interred you must not have interred she must not have interred we must not have interred you must not have interred they must not have interred	I must not have been interring you must not have been interring she must not have been interring we must not have been interring you must not have been interring they must not have been interring

Interrogative form

Simple form	V-ing form
must I inter? must you inter? must she inter? must we inter? must you inter? must they inter?	must I be interring? must you be interring? must she be interring? must we be interring? must you be interring? must they be interring?
Perfect	V-ing perfect
must I have interred? must you have interred? must she have interred? must we have interred? must you have interred? must they have interred?	must I have been interring? must you have been interring? must she have been interring? must we have been interring? must you have been interring? must they have been interring?

Interro-negative form

Simple form	V-ing form
must I not inter? must you not inter? must she not inter? must we not inter? must you not inter? must they not inter?	must I not be interring? must you not be interring? must she not be interring? must we not be interring? must you not be interring? must they not be interring?
Perfect	V-ing perfect
must I not have interred? must you not have interred? must she not have interred? must we not have interred? must you not have interred? must they not have interred?	must I not have been interring? must you not have been interring? must she not have been interring? must we not have been interring? must you not have been interring? must they not have been interring?