English verb conjugation
MUST FLANK

Regular verb: flank - flanked - flanked

Affirmation

Simple form	V-ing form
I must flank you must flank he must flank we must flank you must flank they must flank	I must be flanking you must be flanking he must be flanking we must be flanking you must be flanking they must be flanking
Perfect	V-ing perfect
I must have flanked you must have flanked he must have flanked we must have flanked you must have flanked they must have flanked	I must have been flanking you must have been flanking he must have been flanking we must have been flanking you must have been flanking they must have been flanking

Negation

Simple form	V-ing form
I mustn't flank you mustn't flank he mustn't flank we mustn't flank you mustn't flank they mustn't flank	I mustn't be flanking you mustn't be flanking he mustn't be flanking we mustn't be flanking you mustn't be flanking they mustn't be flanking
Perfect	V-ing perfect
I mustn't have flanked you mustn't have flanked he mustn't have flanked we mustn't have flanked you mustn't have flanked they mustn't have flanked	I mustn't have been flanking you mustn't have been flanking he mustn't have been flanking we mustn't have been flanking you mustn't have been flanking they mustn't have been flanking

Interrogative form

Simple form	V-ing form
must I flank? must you flank? must he flank? must we flank? must you flank? must they flank?	must I be flanking? must you be flanking? must he be flanking? must we be flanking? must you be flanking? must they be flanking?
Perfect	V-ing perfect
must I have flanked? must you have flanked? must he have flanked? must we have flanked? must you have flanked? must they have flanked?	must I have been flanking? must you have been flanking? must he have been flanking? must we have been flanking? must you have been flanking? must they have been flanking?

Interro-negative form

Simple form	V-ing form
mustn't I flank? mustn't you flank? mustn't he flank? mustn't we flank? mustn't you flank? mustn't they flank?	mustn't I be flanking? mustn't you be flanking? mustn't he be flanking? mustn't we be flanking? mustn't you be flanking? mustn't they be flanking?
Perfect	V-ing perfect
mustn't I have flanked? mustn't you have flanked? mustn't he have flanked? mustn't we have flanked? mustn't you have flanked? mustn't they have flanked?	mustn't I have been flanking? mustn't you have been flanking? mustn't he have been flanking? mustn't we have been flanking? mustn't you have been flanking? mustn't they have been flanking?