I must weasel you must weasel he must weasel we must weasel you must weasel they must weasel
V-ing form
I must be weaseling you must be weaseling he must be weaseling we must be weaseling you must be weaseling they must be weaseling
Perfect
I must have weaseled you must have weaseled he must have weaseled we must have weaseled you must have weaseled they must have weaseled
V-ing perfect
I must have been weaseling you must have been weaseling he must have been weaseling we must have been weaseling you must have been weaseling they must have been weaseling
Negation
Simple form
I mustn't weasel you mustn't weasel he mustn't weasel we mustn't weasel you mustn't weasel they mustn't weasel
V-ing form
I mustn't be weaseling you mustn't be weaseling he mustn't be weaseling we mustn't be weaseling you mustn't be weaseling they mustn't be weaseling
Perfect
I mustn't have weaseled you mustn't have weaseled he mustn't have weaseled we mustn't have weaseled you mustn't have weaseled they mustn't have weaseled
V-ing perfect
I mustn't have been weaseling you mustn't have been weaseling he mustn't have been weaseling we mustn't have been weaseling you mustn't have been weaseling they mustn't have been weaseling
Interrogative form
Simple form
must I weasel? must you weasel? must he weasel? must we weasel? must you weasel? must they weasel?
V-ing form
must I be weaseling? must you be weaseling? must he be weaseling? must we be weaseling? must you be weaseling? must they be weaseling?
Perfect
must I have weaseled? must you have weaseled? must he have weaseled? must we have weaseled? must you have weaseled? must they have weaseled?
V-ing perfect
must I have been weaseling? must you have been weaseling? must he have been weaseling? must we have been weaseling? must you have been weaseling? must they have been weaseling?
Interro-negative form
Simple form
mustn't I weasel? mustn't you weasel? mustn't he weasel? mustn't we weasel? mustn't you weasel? mustn't they weasel?
V-ing form
mustn't I be weaseling? mustn't you be weaseling? mustn't he be weaseling? mustn't we be weaseling? mustn't you be weaseling? mustn't they be weaseling?
Perfect
mustn't I have weaseled? mustn't you have weaseled? mustn't he have weaseled? mustn't we have weaseled? mustn't you have weaseled? mustn't they have weaseled?
V-ing perfect
mustn't I have been weaseling? mustn't you have been weaseling? mustn't he have been weaseling? mustn't we have been weaseling? mustn't you have been weaseling? mustn't they have been weaseling?