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 must not tank you must not tank he must not tank we must not tank you must not tank they must not tank	I must not be tanking you must not be tanking he must not be tanking we must not be tanking you must not be tanking they must not be tanking
Perfect	V-ing perfect
I must not have tanked you must not have tanked he must not have tanked we must not have tanked you must not have tanked they must not have tanked	I must not have been tanking you must not have been tanking he must not have been tanking we must not have been tanking you must not have been tanking they must not 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
must I not tank? must you not tank? must he not tank? must we not tank? must you not tank? must they not tank?	must I not be tanking? must you not be tanking? must he not be tanking? must we not be tanking? must you not be tanking? must they not be tanking?
Perfect	V-ing perfect
must I not have tanked? must you not have tanked? must he not have tanked? must we not have tanked? must you not have tanked? must they not have tanked?	must I not have been tanking? must you not have been tanking? must he not have been tanking? must we not have been tanking? must you not have been tanking? must they not have been tanking?