English verb conjugation
MUST TANK

Regular verb: tank - tanked - tanked

Affirmation

Simple form	V-ing form
I must tank you must tank he must tank we must tank you must tank they must tank	I must be tanking you must be tanking he must be tanking we must be tanking you must be tanking they must be tanking
Perfect	V-ing perfect
I must have tanked you must have tanked he must have tanked we must have tanked you must have tanked they must have tanked	I must have been tanking you must have been tanking he must have been tanking we must have been tanking you must have been tanking they must have been tanking

Negation

Simple form	V-ing form
I mustn't tank you mustn't tank he mustn't tank we mustn't tank you mustn't tank they mustn't tank	I mustn't be tanking you mustn't be tanking he mustn't be tanking we mustn't be tanking you mustn't be tanking they mustn't be tanking
Perfect	V-ing perfect
I mustn't have tanked you mustn't have tanked he mustn't have tanked we mustn't have tanked you mustn't have tanked they mustn't have tanked	I mustn't have been tanking you mustn't have been tanking he mustn't have been tanking we mustn't have been tanking you mustn't have been tanking they mustn't have been tanking

Interrogative form

Simple form	V-ing form
must I tank? must you tank? must he tank? must we tank? must you tank? must they tank?	must I be tanking? must you be tanking? must he be tanking? must we be tanking? must you be tanking? must they be tanking?
Perfect	V-ing perfect
must I have tanked? must you have tanked? must he have tanked? must we have tanked? must you have tanked? must they have tanked?	must I have been tanking? must you have been tanking? must he have been tanking? must we have been tanking? must you have been tanking? must they have been tanking?

Interro-negative form

Simple form	V-ing form
mustn't I tank? mustn't you tank? mustn't he tank? mustn't we tank? mustn't you tank? mustn't they tank?	mustn't I be tanking? mustn't you be tanking? mustn't he be tanking? mustn't we be tanking? mustn't you be tanking? mustn't they be tanking?
Perfect	V-ing perfect
mustn't I have tanked? mustn't you have tanked? mustn't he have tanked? mustn't we have tanked? mustn't you have tanked? mustn't they have tanked?	mustn't I have been tanking? mustn't you have been tanking? mustn't he have been tanking? mustn't we have been tanking? mustn't you have been tanking? mustn't they have been tanking?