English verb conjugation
MUST TOUCH

Regular verb: touch - touched - touched

Affirmation

Simple form	V-ing form
I must touch you must touch he must touch we must touch you must touch they must touch	I must be touching you must be touching he must be touching we must be touching you must be touching they must be touching
Perfect	V-ing perfect
I must have touched you must have touched he must have touched we must have touched you must have touched they must have touched	I must have been touching you must have been touching he must have been touching we must have been touching you must have been touching they must have been touching

Negation

Simple form	V-ing form
I mustn't touch you mustn't touch he mustn't touch we mustn't touch you mustn't touch they mustn't touch	I mustn't be touching you mustn't be touching he mustn't be touching we mustn't be touching you mustn't be touching they mustn't be touching
Perfect	V-ing perfect
I mustn't have touched you mustn't have touched he mustn't have touched we mustn't have touched you mustn't have touched they mustn't have touched	I mustn't have been touching you mustn't have been touching he mustn't have been touching we mustn't have been touching you mustn't have been touching they mustn't have been touching

Interrogative form

Simple form	V-ing form
must I touch? must you touch? must he touch? must we touch? must you touch? must they touch?	must I be touching? must you be touching? must he be touching? must we be touching? must you be touching? must they be touching?
Perfect	V-ing perfect
must I have touched? must you have touched? must he have touched? must we have touched? must you have touched? must they have touched?	must I have been touching? must you have been touching? must he have been touching? must we have been touching? must you have been touching? must they have been touching?

Interro-negative form

Simple form	V-ing form
mustn't I touch? mustn't you touch? mustn't he touch? mustn't we touch? mustn't you touch? mustn't they touch?	mustn't I be touching? mustn't you be touching? mustn't he be touching? mustn't we be touching? mustn't you be touching? mustn't they be touching?
Perfect	V-ing perfect
mustn't I have touched? mustn't you have touched? mustn't he have touched? mustn't we have touched? mustn't you have touched? mustn't they have touched?	mustn't I have been touching? mustn't you have been touching? mustn't he have been touching? mustn't we have been touching? mustn't you have been touching? mustn't they have been touching?