English verb conjugation
MUST GLASSPAPER

Regular verb: glasspaper - glasspapered - glasspapered

Affirmation

Simple form	V-ing form
I must glasspaper you must glasspaper he must glasspaper we must glasspaper you must glasspaper they must glasspaper	I must be glasspapering you must be glasspapering he must be glasspapering we must be glasspapering you must be glasspapering they must be glasspapering
Perfect	V-ing perfect
I must have glasspapered you must have glasspapered he must have glasspapered we must have glasspapered you must have glasspapered they must have glasspapered	I must have been glasspapering you must have been glasspapering he must have been glasspapering we must have been glasspapering you must have been glasspapering they must have been glasspapering

Negation

Simple form	V-ing form
I mustn't glasspaper you mustn't glasspaper he mustn't glasspaper we mustn't glasspaper you mustn't glasspaper they mustn't glasspaper	I mustn't be glasspapering you mustn't be glasspapering he mustn't be glasspapering we mustn't be glasspapering you mustn't be glasspapering they mustn't be glasspapering
Perfect	V-ing perfect
I mustn't have glasspapered you mustn't have glasspapered he mustn't have glasspapered we mustn't have glasspapered you mustn't have glasspapered they mustn't have glasspapered	I mustn't have been glasspapering you mustn't have been glasspapering he mustn't have been glasspapering we mustn't have been glasspapering you mustn't have been glasspapering they mustn't have been glasspapering

Interrogative form

Simple form	V-ing form
must I glasspaper? must you glasspaper? must he glasspaper? must we glasspaper? must you glasspaper? must they glasspaper?	must I be glasspapering? must you be glasspapering? must he be glasspapering? must we be glasspapering? must you be glasspapering? must they be glasspapering?
Perfect	V-ing perfect
must I have glasspapered? must you have glasspapered? must he have glasspapered? must we have glasspapered? must you have glasspapered? must they have glasspapered?	must I have been glasspapering? must you have been glasspapering? must he have been glasspapering? must we have been glasspapering? must you have been glasspapering? must they have been glasspapering?

Interro-negative form

Simple form	V-ing form
mustn't I glasspaper? mustn't you glasspaper? mustn't he glasspaper? mustn't we glasspaper? mustn't you glasspaper? mustn't they glasspaper?	mustn't I be glasspapering? mustn't you be glasspapering? mustn't he be glasspapering? mustn't we be glasspapering? mustn't you be glasspapering? mustn't they be glasspapering?
Perfect	V-ing perfect
mustn't I have glasspapered? mustn't you have glasspapered? mustn't he have glasspapered? mustn't we have glasspapered? mustn't you have glasspapered? mustn't they have glasspapered?	mustn't I have been glasspapering? mustn't you have been glasspapering? mustn't he have been glasspapering? mustn't we have been glasspapering? mustn't you have been glasspapering? mustn't they have been glasspapering?