English verb conjugation
MUST SEAM

Regular verb: seam - seamed - seamed

Affirmation

Simple form	V-ing form
I must seam you must seam she must seam we must seam you must seam they must seam	I must be seaming you must be seaming she must be seaming we must be seaming you must be seaming they must be seaming
Perfect	V-ing perfect
I must have seamed you must have seamed she must have seamed we must have seamed you must have seamed they must have seamed	I must have been seaming you must have been seaming she must have been seaming we must have been seaming you must have been seaming they must have been seaming

Negation

Simple form	V-ing form
I mustn't seam you mustn't seam she mustn't seam we mustn't seam you mustn't seam they mustn't seam	I mustn't be seaming you mustn't be seaming she mustn't be seaming we mustn't be seaming you mustn't be seaming they mustn't be seaming
Perfect	V-ing perfect
I mustn't have seamed you mustn't have seamed she mustn't have seamed we mustn't have seamed you mustn't have seamed they mustn't have seamed	I mustn't have been seaming you mustn't have been seaming she mustn't have been seaming we mustn't have been seaming you mustn't have been seaming they mustn't have been seaming

Interrogative form

Simple form	V-ing form
must I seam? must you seam? must she seam? must we seam? must you seam? must they seam?	must I be seaming? must you be seaming? must she be seaming? must we be seaming? must you be seaming? must they be seaming?
Perfect	V-ing perfect
must I have seamed? must you have seamed? must she have seamed? must we have seamed? must you have seamed? must they have seamed?	must I have been seaming? must you have been seaming? must she have been seaming? must we have been seaming? must you have been seaming? must they have been seaming?

Interro-negative form

Simple form	V-ing form
mustn't I seam? mustn't you seam? mustn't she seam? mustn't we seam? mustn't you seam? mustn't they seam?	mustn't I be seaming? mustn't you be seaming? mustn't she be seaming? mustn't we be seaming? mustn't you be seaming? mustn't they be seaming?
Perfect	V-ing perfect
mustn't I have seamed? mustn't you have seamed? mustn't she have seamed? mustn't we have seamed? mustn't you have seamed? mustn't they have seamed?	mustn't I have been seaming? mustn't you have been seaming? mustn't she have been seaming? mustn't we have been seaming? mustn't you have been seaming? mustn't they have been seaming?