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