English verb conjugation
MUST ESTIMATE

Regular verb: estimate - estimated - estimated

Affirmation

Simple form	V-ing form
I must estimate you must estimate she must estimate we must estimate you must estimate they must estimate	I must be estimating you must be estimating she must be estimating we must be estimating you must be estimating they must be estimating
Perfect	V-ing perfect
I must have estimated you must have estimated she must have estimated we must have estimated you must have estimated they must have estimated	I must have been estimating you must have been estimating she must have been estimating we must have been estimating you must have been estimating they must have been estimating

Negation

Simple form	V-ing form
I mustn't estimate you mustn't estimate she mustn't estimate we mustn't estimate you mustn't estimate they mustn't estimate	I mustn't be estimating you mustn't be estimating she mustn't be estimating we mustn't be estimating you mustn't be estimating they mustn't be estimating
Perfect	V-ing perfect
I mustn't have estimated you mustn't have estimated she mustn't have estimated we mustn't have estimated you mustn't have estimated they mustn't have estimated	I mustn't have been estimating you mustn't have been estimating she mustn't have been estimating we mustn't have been estimating you mustn't have been estimating they mustn't have been estimating

Interrogative form

Simple form	V-ing form
must I estimate? must you estimate? must she estimate? must we estimate? must you estimate? must they estimate?	must I be estimating? must you be estimating? must she be estimating? must we be estimating? must you be estimating? must they be estimating?
Perfect	V-ing perfect
must I have estimated? must you have estimated? must she have estimated? must we have estimated? must you have estimated? must they have estimated?	must I have been estimating? must you have been estimating? must she have been estimating? must we have been estimating? must you have been estimating? must they have been estimating?

Interro-negative form

Simple form	V-ing form
mustn't I estimate? mustn't you estimate? mustn't she estimate? mustn't we estimate? mustn't you estimate? mustn't they estimate?	mustn't I be estimating? mustn't you be estimating? mustn't she be estimating? mustn't we be estimating? mustn't you be estimating? mustn't they be estimating?
Perfect	V-ing perfect
mustn't I have estimated? mustn't you have estimated? mustn't she have estimated? mustn't we have estimated? mustn't you have estimated? mustn't they have estimated?	mustn't I have been estimating? mustn't you have been estimating? mustn't she have been estimating? mustn't we have been estimating? mustn't you have been estimating? mustn't they have been estimating?