English verb conjugation
MUST GREEN

Regular verb: green - greened - greened

Affirmation

Simple form	V-ing form
I must green you must green she must green we must green you must green they must green	I must be greening you must be greening she must be greening we must be greening you must be greening they must be greening
Perfect	V-ing perfect
I must have greened you must have greened she must have greened we must have greened you must have greened they must have greened	I must have been greening you must have been greening she must have been greening we must have been greening you must have been greening they must have been greening

Negation

Simple form	V-ing form
I mustn't green you mustn't green she mustn't green we mustn't green you mustn't green they mustn't green	I mustn't be greening you mustn't be greening she mustn't be greening we mustn't be greening you mustn't be greening they mustn't be greening
Perfect	V-ing perfect
I mustn't have greened you mustn't have greened she mustn't have greened we mustn't have greened you mustn't have greened they mustn't have greened	I mustn't have been greening you mustn't have been greening she mustn't have been greening we mustn't have been greening you mustn't have been greening they mustn't have been greening

Interrogative form

Simple form	V-ing form
must I green? must you green? must she green? must we green? must you green? must they green?	must I be greening? must you be greening? must she be greening? must we be greening? must you be greening? must they be greening?
Perfect	V-ing perfect
must I have greened? must you have greened? must she have greened? must we have greened? must you have greened? must they have greened?	must I have been greening? must you have been greening? must she have been greening? must we have been greening? must you have been greening? must they have been greening?

Interro-negative form

Simple form	V-ing form
mustn't I green? mustn't you green? mustn't she green? mustn't we green? mustn't you green? mustn't they green?	mustn't I be greening? mustn't you be greening? mustn't she be greening? mustn't we be greening? mustn't you be greening? mustn't they be greening?
Perfect	V-ing perfect
mustn't I have greened? mustn't you have greened? mustn't she have greened? mustn't we have greened? mustn't you have greened? mustn't they have greened?	mustn't I have been greening? mustn't you have been greening? mustn't she have been greening? mustn't we have been greening? mustn't you have been greening? mustn't they have been greening?