English verb conjugation
MUST TAUTEN

Regular verb: tauten - tautened - tautened

Affirmation

Simple form	V-ing form
I must tauten you must tauten he must tauten we must tauten you must tauten they must tauten	I must be tautening you must be tautening he must be tautening we must be tautening you must be tautening they must be tautening
Perfect	V-ing perfect
I must have tautened you must have tautened he must have tautened we must have tautened you must have tautened they must have tautened	I must have been tautening you must have been tautening he must have been tautening we must have been tautening you must have been tautening they must have been tautening

Negation

Simple form	V-ing form
I mustn't tauten you mustn't tauten he mustn't tauten we mustn't tauten you mustn't tauten they mustn't tauten	I mustn't be tautening you mustn't be tautening he mustn't be tautening we mustn't be tautening you mustn't be tautening they mustn't be tautening
Perfect	V-ing perfect
I mustn't have tautened you mustn't have tautened he mustn't have tautened we mustn't have tautened you mustn't have tautened they mustn't have tautened	I mustn't have been tautening you mustn't have been tautening he mustn't have been tautening we mustn't have been tautening you mustn't have been tautening they mustn't have been tautening

Interrogative form

Simple form	V-ing form
must I tauten? must you tauten? must he tauten? must we tauten? must you tauten? must they tauten?	must I be tautening? must you be tautening? must he be tautening? must we be tautening? must you be tautening? must they be tautening?
Perfect	V-ing perfect
must I have tautened? must you have tautened? must he have tautened? must we have tautened? must you have tautened? must they have tautened?	must I have been tautening? must you have been tautening? must he have been tautening? must we have been tautening? must you have been tautening? must they have been tautening?

Interro-negative form

Simple form	V-ing form
mustn't I tauten? mustn't you tauten? mustn't he tauten? mustn't we tauten? mustn't you tauten? mustn't they tauten?	mustn't I be tautening? mustn't you be tautening? mustn't he be tautening? mustn't we be tautening? mustn't you be tautening? mustn't they be tautening?
Perfect	V-ing perfect
mustn't I have tautened? mustn't you have tautened? mustn't he have tautened? mustn't we have tautened? mustn't you have tautened? mustn't they have tautened?	mustn't I have been tautening? mustn't you have been tautening? mustn't he have been tautening? mustn't we have been tautening? mustn't you have been tautening? mustn't they have been tautening?