English verb conjugation
MUST SAY

Irregular verb: say - said - said

Affirmation

Simple form	V-ing form
I must say you must say she must say we must say you must say they must say	I must be saying you must be saying she 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 she 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 she 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 she 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 she 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 she 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 she 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 she say? must we say? must you say? must they say?	must I be saying? must you be saying? must she 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 she 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 she 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 she 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 she 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 she 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 she have been saying? mustn't we have been saying? mustn't you have been saying? mustn't they have been saying?