English verb conjugation
MUST GASSER

Regular verb: gasser - gassered - gassered

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must gasser you must gasser he must gasser we must gasser you must gasser they must gasser	I must be gassering you must be gassering he must be gassering we must be gassering you must be gassering they must be gassering
Perfect	V-ing perfect
I must have gassered you must have gassered he must have gassered we must have gassered you must have gassered they must have gassered	I must have been gassering you must have been gassering he must have been gassering we must have been gassering you must have been gassering they must have been gassering

Negation

Simple form	V-ing form
I mustn't gasser you mustn't gasser he mustn't gasser we mustn't gasser you mustn't gasser they mustn't gasser	I mustn't be gassering you mustn't be gassering he mustn't be gassering we mustn't be gassering you mustn't be gassering they mustn't be gassering
Perfect	V-ing perfect
I mustn't have gassered you mustn't have gassered he mustn't have gassered we mustn't have gassered you mustn't have gassered they mustn't have gassered	I mustn't have been gassering you mustn't have been gassering he mustn't have been gassering we mustn't have been gassering you mustn't have been gassering they mustn't have been gassering

Interrogative form

Simple form	V-ing form
must I gasser? must you gasser? must he gasser? must we gasser? must you gasser? must they gasser?	must I be gassering? must you be gassering? must he be gassering? must we be gassering? must you be gassering? must they be gassering?
Perfect	V-ing perfect
must I have gassered? must you have gassered? must he have gassered? must we have gassered? must you have gassered? must they have gassered?	must I have been gassering? must you have been gassering? must he have been gassering? must we have been gassering? must you have been gassering? must they have been gassering?

Interro-negative form

Simple form	V-ing form
mustn't I gasser? mustn't you gasser? mustn't he gasser? mustn't we gasser? mustn't you gasser? mustn't they gasser?	mustn't I be gassering? mustn't you be gassering? mustn't he be gassering? mustn't we be gassering? mustn't you be gassering? mustn't they be gassering?
Perfect	V-ing perfect
mustn't I have gassered? mustn't you have gassered? mustn't he have gassered? mustn't we have gassered? mustn't you have gassered? mustn't they have gassered?	mustn't I have been gassering? mustn't you have been gassering? mustn't he have been gassering? mustn't we have been gassering? mustn't you have been gassering? mustn't they have been gassering?