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 mustn't say you mustn't say he mustn't say we mustn't say you mustn't say they mustn't say	I mustn't be saying you mustn't be saying he mustn't be saying we mustn't be saying you mustn't be saying they mustn't be saying
Perfect	V-ing perfect
I mustn't have said you mustn't have said he mustn't have said we mustn't have said you mustn't have said they mustn't have said	I mustn't have been saying you mustn't have been saying he mustn't have been saying we mustn't have been saying you mustn't have been saying they mustn't 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
mustn't I say? mustn't you say? mustn't he say? mustn't we say? mustn't you say? mustn't they say?	mustn't I be saying? mustn't you be saying? mustn't he be saying? mustn't we be saying? mustn't you be saying? mustn't they be saying?
Perfect	V-ing perfect
mustn't I have said? mustn't you have said? mustn't he have said? mustn't we have said? mustn't you have said? mustn't they have said?	mustn't I have been saying? mustn't you have been saying? mustn't he have been saying? mustn't we have been saying? mustn't you have been saying? mustn't they have been saying?