English verb conjugation
MUST DECUSSATE

Regular verb: decussate - decussated - decussated

Affirmation

Simple form	V-ing form
I must decussate you must decussate he must decussate we must decussate you must decussate they must decussate	I must be decussating you must be decussating he must be decussating we must be decussating you must be decussating they must be decussating
Perfect	V-ing perfect
I must have decussated you must have decussated he must have decussated we must have decussated you must have decussated they must have decussated	I must have been decussating you must have been decussating he must have been decussating we must have been decussating you must have been decussating they must have been decussating

Negation

Simple form	V-ing form
I mustn't decussate you mustn't decussate he mustn't decussate we mustn't decussate you mustn't decussate they mustn't decussate	I mustn't be decussating you mustn't be decussating he mustn't be decussating we mustn't be decussating you mustn't be decussating they mustn't be decussating
Perfect	V-ing perfect
I mustn't have decussated you mustn't have decussated he mustn't have decussated we mustn't have decussated you mustn't have decussated they mustn't have decussated	I mustn't have been decussating you mustn't have been decussating he mustn't have been decussating we mustn't have been decussating you mustn't have been decussating they mustn't have been decussating

Interrogative form

Simple form	V-ing form
must I decussate? must you decussate? must he decussate? must we decussate? must you decussate? must they decussate?	must I be decussating? must you be decussating? must he be decussating? must we be decussating? must you be decussating? must they be decussating?
Perfect	V-ing perfect
must I have decussated? must you have decussated? must he have decussated? must we have decussated? must you have decussated? must they have decussated?	must I have been decussating? must you have been decussating? must he have been decussating? must we have been decussating? must you have been decussating? must they have been decussating?

Interro-negative form

Simple form	V-ing form
mustn't I decussate? mustn't you decussate? mustn't he decussate? mustn't we decussate? mustn't you decussate? mustn't they decussate?	mustn't I be decussating? mustn't you be decussating? mustn't he be decussating? mustn't we be decussating? mustn't you be decussating? mustn't they be decussating?
Perfect	V-ing perfect
mustn't I have decussated? mustn't you have decussated? mustn't he have decussated? mustn't we have decussated? mustn't you have decussated? mustn't they have decussated?	mustn't I have been decussating? mustn't you have been decussating? mustn't he have been decussating? mustn't we have been decussating? mustn't you have been decussating? mustn't they have been decussating?