English verb conjugation
MUST TENON

Regular verb: tenon - tenoned - tenoned

Affirmation

Simple form	V-ing form
I must tenon you must tenon he must tenon we must tenon you must tenon they must tenon	I must be tenoning you must be tenoning he must be tenoning we must be tenoning you must be tenoning they must be tenoning
Perfect	V-ing perfect
I must have tenoned you must have tenoned he must have tenoned we must have tenoned you must have tenoned they must have tenoned	I must have been tenoning you must have been tenoning he must have been tenoning we must have been tenoning you must have been tenoning they must have been tenoning

Negation

Simple form	V-ing form
I mustn't tenon you mustn't tenon he mustn't tenon we mustn't tenon you mustn't tenon they mustn't tenon	I mustn't be tenoning you mustn't be tenoning he mustn't be tenoning we mustn't be tenoning you mustn't be tenoning they mustn't be tenoning
Perfect	V-ing perfect
I mustn't have tenoned you mustn't have tenoned he mustn't have tenoned we mustn't have tenoned you mustn't have tenoned they mustn't have tenoned	I mustn't have been tenoning you mustn't have been tenoning he mustn't have been tenoning we mustn't have been tenoning you mustn't have been tenoning they mustn't have been tenoning

Interrogative form

Simple form	V-ing form
must I tenon? must you tenon? must he tenon? must we tenon? must you tenon? must they tenon?	must I be tenoning? must you be tenoning? must he be tenoning? must we be tenoning? must you be tenoning? must they be tenoning?
Perfect	V-ing perfect
must I have tenoned? must you have tenoned? must he have tenoned? must we have tenoned? must you have tenoned? must they have tenoned?	must I have been tenoning? must you have been tenoning? must he have been tenoning? must we have been tenoning? must you have been tenoning? must they have been tenoning?

Interro-negative form

Simple form	V-ing form
mustn't I tenon? mustn't you tenon? mustn't he tenon? mustn't we tenon? mustn't you tenon? mustn't they tenon?	mustn't I be tenoning? mustn't you be tenoning? mustn't he be tenoning? mustn't we be tenoning? mustn't you be tenoning? mustn't they be tenoning?
Perfect	V-ing perfect
mustn't I have tenoned? mustn't you have tenoned? mustn't he have tenoned? mustn't we have tenoned? mustn't you have tenoned? mustn't they have tenoned?	mustn't I have been tenoning? mustn't you have been tenoning? mustn't he have been tenoning? mustn't we have been tenoning? mustn't you have been tenoning? mustn't they have been tenoning?