English verb conjugation
MUST SAY

Irregular verb: say - said - said

Affirmation

Simple form	V-ing form
I must say you must say he must say we must say you must say they must say	I must be saying you must be saying he must be saying we must be saying you must be saying they must be saying
Perfect	V-ing perfect
I must have said you must have said he must have said we must have said you must have said they must have said	I must have been saying you must have been saying he must have been saying we must have been saying you must have been saying they must have been saying

Negation

Simple form	V-ing form
I must not say you must not say he must not say we must not say you must not say they must not say	I must not be saying you must not be saying he must not be saying we must not be saying you must not be saying they must not be saying
Perfect	V-ing perfect
I must not have said you must not have said he must not have said we must not have said you must not have said they must not have said	I must not have been saying you must not have been saying he must not have been saying we must not have been saying you must not have been saying they must not have been saying

Interrogative form

Simple form	V-ing form
must I say? must you say? must he say? must we say? must you say? must they say?	must I be saying? must you be saying? must he be saying? must we be saying? must you be saying? must they be saying?
Perfect	V-ing perfect
must I have said? must you have said? must he have said? must we have said? must you have said? must they have said?	must I have been saying? must you have been saying? must he have been saying? must we have been saying? must you have been saying? must they have been saying?

Interro-negative form

Simple form	V-ing form
must I not say? must you not say? must he not say? must we not say? must you not say? must they not say?	must I not be saying? must you not be saying? must he not be saying? must we not be saying? must you not be saying? must they not be saying?
Perfect	V-ing perfect
must I not have said? must you not have said? must he not have said? must we not have said? must you not have said? must they not have said?	must I not have been saying? must you not have been saying? must he not have been saying? must we not have been saying? must you not have been saying? must they not have been saying?