Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must assemble attach you must assemble attach he must assemble attach we must assemble attach you must assemble attach they must assemble attach
V-ing form
I must be assemble attaching you must be assemble attaching he must be assemble attaching we must be assemble attaching you must be assemble attaching they must be assemble attaching
Perfect
I must have assemble attached you must have assemble attached he must have assemble attached we must have assemble attached you must have assemble attached they must have assemble attached
V-ing perfect
I must have been assemble attaching you must have been assemble attaching he must have been assemble attaching we must have been assemble attaching you must have been assemble attaching they must have been assemble attaching
Negation
Simple form
I must not assemble attach you must not assemble attach he must not assemble attach we must not assemble attach you must not assemble attach they must not assemble attach
V-ing form
I must not be assemble attaching you must not be assemble attaching he must not be assemble attaching we must not be assemble attaching you must not be assemble attaching they must not be assemble attaching
Perfect
I must not have assemble attached you must not have assemble attached he must not have assemble attached we must not have assemble attached you must not have assemble attached they must not have assemble attached
V-ing perfect
I must not have been assemble attaching you must not have been assemble attaching he must not have been assemble attaching we must not have been assemble attaching you must not have been assemble attaching they must not have been assemble attaching
Interrogative form
Simple form
must I assemble attach? must you assemble attach? must he assemble attach? must we assemble attach? must you assemble attach? must they assemble attach?
V-ing form
must I be assemble attaching? must you be assemble attaching? must he be assemble attaching? must we be assemble attaching? must you be assemble attaching? must they be assemble attaching?
Perfect
must I have assemble attached? must you have assemble attached? must he have assemble attached? must we have assemble attached? must you have assemble attached? must they have assemble attached?
V-ing perfect
must I have been assemble attaching? must you have been assemble attaching? must he have been assemble attaching? must we have been assemble attaching? must you have been assemble attaching? must they have been assemble attaching?
Interro-negative form
Simple form
must I not assemble attach? must you not assemble attach? must he not assemble attach? must we not assemble attach? must you not assemble attach? must they not assemble attach?
V-ing form
must I not be assemble attaching? must you not be assemble attaching? must he not be assemble attaching? must we not be assemble attaching? must you not be assemble attaching? must they not be assemble attaching?
Perfect
must I not have assemble attached? must you not have assemble attached? must he not have assemble attached? must we not have assemble attached? must you not have assemble attached? must they not have assemble attached?
V-ing perfect
must I not have been assemble attaching? must you not have been assemble attaching? must he not have been assemble attaching? must we not have been assemble attaching? must you not have been assemble attaching? must they not have been assemble attaching?