English verb conjugation
MUST CLAMP

Regular verb: clamp - clamped - clamped

Affirmation

Simple form	V-ing form
I must clamp you must clamp he must clamp we must clamp you must clamp they must clamp	I must be clamping you must be clamping he must be clamping we must be clamping you must be clamping they must be clamping
Perfect	V-ing perfect
I must have clamped you must have clamped he must have clamped we must have clamped you must have clamped they must have clamped	I must have been clamping you must have been clamping he must have been clamping we must have been clamping you must have been clamping they must have been clamping

Negation

Simple form	V-ing form
I must not clamp you must not clamp he must not clamp we must not clamp you must not clamp they must not clamp	I must not be clamping you must not be clamping he must not be clamping we must not be clamping you must not be clamping they must not be clamping
Perfect	V-ing perfect
I must not have clamped you must not have clamped he must not have clamped we must not have clamped you must not have clamped they must not have clamped	I must not have been clamping you must not have been clamping he must not have been clamping we must not have been clamping you must not have been clamping they must not have been clamping

Interrogative form

Simple form	V-ing form
must I clamp? must you clamp? must he clamp? must we clamp? must you clamp? must they clamp?	must I be clamping? must you be clamping? must he be clamping? must we be clamping? must you be clamping? must they be clamping?
Perfect	V-ing perfect
must I have clamped? must you have clamped? must he have clamped? must we have clamped? must you have clamped? must they have clamped?	must I have been clamping? must you have been clamping? must he have been clamping? must we have been clamping? must you have been clamping? must they have been clamping?

Interro-negative form

Simple form	V-ing form
must I not clamp? must you not clamp? must he not clamp? must we not clamp? must you not clamp? must they not clamp?	must I not be clamping? must you not be clamping? must he not be clamping? must we not be clamping? must you not be clamping? must they not be clamping?
Perfect	V-ing perfect
must I not have clamped? must you not have clamped? must he not have clamped? must we not have clamped? must you not have clamped? must they not have clamped?	must I not have been clamping? must you not have been clamping? must he not have been clamping? must we not have been clamping? must you not have been clamping? must they not have been clamping?