English verb conjugation
MUST PASS

Regular verb: pass - passed - passed

Affirmation

Simple form	V-ing form
I must pass you must pass she must pass we must pass you must pass they must pass	I must be passing you must be passing she must be passing we must be passing you must be passing they must be passing
Perfect	V-ing perfect
I must have passed you must have passed she must have passed we must have passed you must have passed they must have passed	I must have been passing you must have been passing she must have been passing we must have been passing you must have been passing they must have been passing

Negation

Simple form	V-ing form
I mustn't pass you mustn't pass she mustn't pass we mustn't pass you mustn't pass they mustn't pass	I mustn't be passing you mustn't be passing she mustn't be passing we mustn't be passing you mustn't be passing they mustn't be passing
Perfect	V-ing perfect
I mustn't have passed you mustn't have passed she mustn't have passed we mustn't have passed you mustn't have passed they mustn't have passed	I mustn't have been passing you mustn't have been passing she mustn't have been passing we mustn't have been passing you mustn't have been passing they mustn't have been passing

Interrogative form

Simple form	V-ing form
must I pass? must you pass? must she pass? must we pass? must you pass? must they pass?	must I be passing? must you be passing? must she be passing? must we be passing? must you be passing? must they be passing?
Perfect	V-ing perfect
must I have passed? must you have passed? must she have passed? must we have passed? must you have passed? must they have passed?	must I have been passing? must you have been passing? must she have been passing? must we have been passing? must you have been passing? must they have been passing?

Interro-negative form

Simple form	V-ing form
mustn't I pass? mustn't you pass? mustn't she pass? mustn't we pass? mustn't you pass? mustn't they pass?	mustn't I be passing? mustn't you be passing? mustn't she be passing? mustn't we be passing? mustn't you be passing? mustn't they be passing?
Perfect	V-ing perfect
mustn't I have passed? mustn't you have passed? mustn't she have passed? mustn't we have passed? mustn't you have passed? mustn't they have passed?	mustn't I have been passing? mustn't you have been passing? mustn't she have been passing? mustn't we have been passing? mustn't you have been passing? mustn't they have been passing?