English verb conjugation
MUST TWANG

Regular verb: twang - twanged - twanged

Affirmation

Simple form	V-ing form
I must twang you must twang he must twang we must twang you must twang they must twang	I must be twanging you must be twanging he must be twanging we must be twanging you must be twanging they must be twanging
Perfect	V-ing perfect
I must have twanged you must have twanged he must have twanged we must have twanged you must have twanged they must have twanged	I must have been twanging you must have been twanging he must have been twanging we must have been twanging you must have been twanging they must have been twanging

Negation

Simple form	V-ing form
I must not twang you must not twang he must not twang we must not twang you must not twang they must not twang	I must not be twanging you must not be twanging he must not be twanging we must not be twanging you must not be twanging they must not be twanging
Perfect	V-ing perfect
I must not have twanged you must not have twanged he must not have twanged we must not have twanged you must not have twanged they must not have twanged	I must not have been twanging you must not have been twanging he must not have been twanging we must not have been twanging you must not have been twanging they must not have been twanging

Interrogative form

Simple form	V-ing form
must I twang? must you twang? must he twang? must we twang? must you twang? must they twang?	must I be twanging? must you be twanging? must he be twanging? must we be twanging? must you be twanging? must they be twanging?
Perfect	V-ing perfect
must I have twanged? must you have twanged? must he have twanged? must we have twanged? must you have twanged? must they have twanged?	must I have been twanging? must you have been twanging? must he have been twanging? must we have been twanging? must you have been twanging? must they have been twanging?

Interro-negative form

Simple form	V-ing form
must I not twang? must you not twang? must he not twang? must we not twang? must you not twang? must they not twang?	must I not be twanging? must you not be twanging? must he not be twanging? must we not be twanging? must you not be twanging? must they not be twanging?
Perfect	V-ing perfect
must I not have twanged? must you not have twanged? must he not have twanged? must we not have twanged? must you not have twanged? must they not have twanged?	must I not have been twanging? must you not have been twanging? must he not have been twanging? must we not have been twanging? must you not have been twanging? must they not have been twanging?