English verb conjugation
MUST TENSE

Regular verb: tense - tensed - tensed

Affirmation

Simple form	V-ing form
I must tense you must tense he must tense we must tense you must tense they must tense	I must be tensing you must be tensing he must be tensing we must be tensing you must be tensing they must be tensing
Perfect	V-ing perfect
I must have tensed you must have tensed he must have tensed we must have tensed you must have tensed they must have tensed	I must have been tensing you must have been tensing he must have been tensing we must have been tensing you must have been tensing they must have been tensing

Negation

Simple form	V-ing form
I mustn't tense you mustn't tense he mustn't tense we mustn't tense you mustn't tense they mustn't tense	I mustn't be tensing you mustn't be tensing he mustn't be tensing we mustn't be tensing you mustn't be tensing they mustn't be tensing
Perfect	V-ing perfect
I mustn't have tensed you mustn't have tensed he mustn't have tensed we mustn't have tensed you mustn't have tensed they mustn't have tensed	I mustn't have been tensing you mustn't have been tensing he mustn't have been tensing we mustn't have been tensing you mustn't have been tensing they mustn't have been tensing

Interrogative form

Simple form	V-ing form
must I tense? must you tense? must he tense? must we tense? must you tense? must they tense?	must I be tensing? must you be tensing? must he be tensing? must we be tensing? must you be tensing? must they be tensing?
Perfect	V-ing perfect
must I have tensed? must you have tensed? must he have tensed? must we have tensed? must you have tensed? must they have tensed?	must I have been tensing? must you have been tensing? must he have been tensing? must we have been tensing? must you have been tensing? must they have been tensing?

Interro-negative form

Simple form	V-ing form
mustn't I tense? mustn't you tense? mustn't he tense? mustn't we tense? mustn't you tense? mustn't they tense?	mustn't I be tensing? mustn't you be tensing? mustn't he be tensing? mustn't we be tensing? mustn't you be tensing? mustn't they be tensing?
Perfect	V-ing perfect
mustn't I have tensed? mustn't you have tensed? mustn't he have tensed? mustn't we have tensed? mustn't you have tensed? mustn't they have tensed?	mustn't I have been tensing? mustn't you have been tensing? mustn't he have been tensing? mustn't we have been tensing? mustn't you have been tensing? mustn't they have been tensing?