I must generate you must generate she must generate we must generate you must generate they must generate
V-ing form
I must be generating you must be generating she must be generating we must be generating you must be generating they must be generating
Perfect
I must have generated you must have generated she must have generated we must have generated you must have generated they must have generated
V-ing perfect
I must have been generating you must have been generating she must have been generating we must have been generating you must have been generating they must have been generating
Negation
Simple form
I mustn't generate you mustn't generate she mustn't generate we mustn't generate you mustn't generate they mustn't generate
V-ing form
I mustn't be generating you mustn't be generating she mustn't be generating we mustn't be generating you mustn't be generating they mustn't be generating
Perfect
I mustn't have generated you mustn't have generated she mustn't have generated we mustn't have generated you mustn't have generated they mustn't have generated
V-ing perfect
I mustn't have been generating you mustn't have been generating she mustn't have been generating we mustn't have been generating you mustn't have been generating they mustn't have been generating
Interrogative form
Simple form
must I generate? must you generate? must she generate? must we generate? must you generate? must they generate?
V-ing form
must I be generating? must you be generating? must she be generating? must we be generating? must you be generating? must they be generating?
Perfect
must I have generated? must you have generated? must she have generated? must we have generated? must you have generated? must they have generated?
V-ing perfect
must I have been generating? must you have been generating? must she have been generating? must we have been generating? must you have been generating? must they have been generating?
Interro-negative form
Simple form
mustn't I generate? mustn't you generate? mustn't she generate? mustn't we generate? mustn't you generate? mustn't they generate?
V-ing form
mustn't I be generating? mustn't you be generating? mustn't she be generating? mustn't we be generating? mustn't you be generating? mustn't they be generating?
Perfect
mustn't I have generated? mustn't you have generated? mustn't she have generated? mustn't we have generated? mustn't you have generated? mustn't they have generated?
V-ing perfect
mustn't I have been generating? mustn't you have been generating? mustn't she have been generating? mustn't we have been generating? mustn't you have been generating? mustn't they have been generating?