English verb conjugation
MUST TAMP

Regular verb: tamp - tamped - tamped

Affirmation

Simple form	V-ing form
I must tamp you must tamp he must tamp we must tamp you must tamp they must tamp	I must be tamping you must be tamping he must be tamping we must be tamping you must be tamping they must be tamping
Perfect	V-ing perfect
I must have tamped you must have tamped he must have tamped we must have tamped you must have tamped they must have tamped	I must have been tamping you must have been tamping he must have been tamping we must have been tamping you must have been tamping they must have been tamping

Negation

Simple form	V-ing form
I mustn't tamp you mustn't tamp he mustn't tamp we mustn't tamp you mustn't tamp they mustn't tamp	I mustn't be tamping you mustn't be tamping he mustn't be tamping we mustn't be tamping you mustn't be tamping they mustn't be tamping
Perfect	V-ing perfect
I mustn't have tamped you mustn't have tamped he mustn't have tamped we mustn't have tamped you mustn't have tamped they mustn't have tamped	I mustn't have been tamping you mustn't have been tamping he mustn't have been tamping we mustn't have been tamping you mustn't have been tamping they mustn't have been tamping

Interrogative form

Simple form	V-ing form
must I tamp? must you tamp? must he tamp? must we tamp? must you tamp? must they tamp?	must I be tamping? must you be tamping? must he be tamping? must we be tamping? must you be tamping? must they be tamping?
Perfect	V-ing perfect
must I have tamped? must you have tamped? must he have tamped? must we have tamped? must you have tamped? must they have tamped?	must I have been tamping? must you have been tamping? must he have been tamping? must we have been tamping? must you have been tamping? must they have been tamping?

Interro-negative form

Simple form	V-ing form
mustn't I tamp? mustn't you tamp? mustn't he tamp? mustn't we tamp? mustn't you tamp? mustn't they tamp?	mustn't I be tamping? mustn't you be tamping? mustn't he be tamping? mustn't we be tamping? mustn't you be tamping? mustn't they be tamping?
Perfect	V-ing perfect
mustn't I have tamped? mustn't you have tamped? mustn't he have tamped? mustn't we have tamped? mustn't you have tamped? mustn't they have tamped?	mustn't I have been tamping? mustn't you have been tamping? mustn't he have been tamping? mustn't we have been tamping? mustn't you have been tamping? mustn't they have been tamping?