English verb conjugation
MUST DEFUSE

Regular verb: defuse - defused - defused

Affirmation

Simple form	V-ing form
I must defuse you must defuse she must defuse we must defuse you must defuse they must defuse	I must be defusing you must be defusing she must be defusing we must be defusing you must be defusing they must be defusing
Perfect	V-ing perfect
I must have defused you must have defused she must have defused we must have defused you must have defused they must have defused	I must have been defusing you must have been defusing she must have been defusing we must have been defusing you must have been defusing they must have been defusing

Negation

Simple form	V-ing form
I must not defuse you must not defuse she must not defuse we must not defuse you must not defuse they must not defuse	I must not be defusing you must not be defusing she must not be defusing we must not be defusing you must not be defusing they must not be defusing
Perfect	V-ing perfect
I must not have defused you must not have defused she must not have defused we must not have defused you must not have defused they must not have defused	I must not have been defusing you must not have been defusing she must not have been defusing we must not have been defusing you must not have been defusing they must not have been defusing

Interrogative form

Simple form	V-ing form
must I defuse? must you defuse? must she defuse? must we defuse? must you defuse? must they defuse?	must I be defusing? must you be defusing? must she be defusing? must we be defusing? must you be defusing? must they be defusing?
Perfect	V-ing perfect
must I have defused? must you have defused? must she have defused? must we have defused? must you have defused? must they have defused?	must I have been defusing? must you have been defusing? must she have been defusing? must we have been defusing? must you have been defusing? must they have been defusing?

Interro-negative form

Simple form	V-ing form
must I not defuse? must you not defuse? must she not defuse? must we not defuse? must you not defuse? must they not defuse?	must I not be defusing? must you not be defusing? must she not be defusing? must we not be defusing? must you not be defusing? must they not be defusing?
Perfect	V-ing perfect
must I not have defused? must you not have defused? must she not have defused? must we not have defused? must you not have defused? must they not have defused?	must I not have been defusing? must you not have been defusing? must she not have been defusing? must we not have been defusing? must you not have been defusing? must they not have been defusing?