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 mustn't clamp you mustn't clamp he mustn't clamp we mustn't clamp you mustn't clamp they mustn't clamp	I mustn't be clamping you mustn't be clamping he mustn't be clamping we mustn't be clamping you mustn't be clamping they mustn't be clamping
Perfect	V-ing perfect
I mustn't have clamped you mustn't have clamped he mustn't have clamped we mustn't have clamped you mustn't have clamped they mustn't have clamped	I mustn't have been clamping you mustn't have been clamping he mustn't have been clamping we mustn't have been clamping you mustn't have been clamping they mustn't 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
mustn't I clamp? mustn't you clamp? mustn't he clamp? mustn't we clamp? mustn't you clamp? mustn't they clamp?	mustn't I be clamping? mustn't you be clamping? mustn't he be clamping? mustn't we be clamping? mustn't you be clamping? mustn't they be clamping?
Perfect	V-ing perfect
mustn't I have clamped? mustn't you have clamped? mustn't he have clamped? mustn't we have clamped? mustn't you have clamped? mustn't they have clamped?	mustn't I have been clamping? mustn't you have been clamping? mustn't he have been clamping? mustn't we have been clamping? mustn't you have been clamping? mustn't they have been clamping?