English verb conjugation
MUST UNCLASP

Regular verb: unclasp - unclasped - unclasped

Affirmation

Simple form	V-ing form
I must unclasp you must unclasp he must unclasp we must unclasp you must unclasp they must unclasp	I must be unclasping you must be unclasping he must be unclasping we must be unclasping you must be unclasping they must be unclasping
Perfect	V-ing perfect
I must have unclasped you must have unclasped he must have unclasped we must have unclasped you must have unclasped they must have unclasped	I must have been unclasping you must have been unclasping he must have been unclasping we must have been unclasping you must have been unclasping they must have been unclasping

Negation

Simple form	V-ing form
I must not unclasp you must not unclasp he must not unclasp we must not unclasp you must not unclasp they must not unclasp	I must not be unclasping you must not be unclasping he must not be unclasping we must not be unclasping you must not be unclasping they must not be unclasping
Perfect	V-ing perfect
I must not have unclasped you must not have unclasped he must not have unclasped we must not have unclasped you must not have unclasped they must not have unclasped	I must not have been unclasping you must not have been unclasping he must not have been unclasping we must not have been unclasping you must not have been unclasping they must not have been unclasping

Interrogative form

Simple form	V-ing form
must I unclasp? must you unclasp? must he unclasp? must we unclasp? must you unclasp? must they unclasp?	must I be unclasping? must you be unclasping? must he be unclasping? must we be unclasping? must you be unclasping? must they be unclasping?
Perfect	V-ing perfect
must I have unclasped? must you have unclasped? must he have unclasped? must we have unclasped? must you have unclasped? must they have unclasped?	must I have been unclasping? must you have been unclasping? must he have been unclasping? must we have been unclasping? must you have been unclasping? must they have been unclasping?

Interro-negative form

Simple form	V-ing form
must I not unclasp? must you not unclasp? must he not unclasp? must we not unclasp? must you not unclasp? must they not unclasp?	must I not be unclasping? must you not be unclasping? must he not be unclasping? must we not be unclasping? must you not be unclasping? must they not be unclasping?
Perfect	V-ing perfect
must I not have unclasped? must you not have unclasped? must he not have unclasped? must we not have unclasped? must you not have unclasped? must they not have unclasped?	must I not have been unclasping? must you not have been unclasping? must he not have been unclasping? must we not have been unclasping? must you not have been unclasping? must they not have been unclasping?