English verb conjugation
MUST FURNISH

Regular verb: furnish - furnished - furnished

Affirmation

Simple form	V-ing form
I must furnish you must furnish he must furnish we must furnish you must furnish they must furnish	I must be furnishing you must be furnishing he must be furnishing we must be furnishing you must be furnishing they must be furnishing
Perfect	V-ing perfect
I must have furnished you must have furnished he must have furnished we must have furnished you must have furnished they must have furnished	I must have been furnishing you must have been furnishing he must have been furnishing we must have been furnishing you must have been furnishing they must have been furnishing

Negation

Simple form	V-ing form
I must not furnish you must not furnish he must not furnish we must not furnish you must not furnish they must not furnish	I must not be furnishing you must not be furnishing he must not be furnishing we must not be furnishing you must not be furnishing they must not be furnishing
Perfect	V-ing perfect
I must not have furnished you must not have furnished he must not have furnished we must not have furnished you must not have furnished they must not have furnished	I must not have been furnishing you must not have been furnishing he must not have been furnishing we must not have been furnishing you must not have been furnishing they must not have been furnishing

Interrogative form

Simple form	V-ing form
must I furnish? must you furnish? must he furnish? must we furnish? must you furnish? must they furnish?	must I be furnishing? must you be furnishing? must he be furnishing? must we be furnishing? must you be furnishing? must they be furnishing?
Perfect	V-ing perfect
must I have furnished? must you have furnished? must he have furnished? must we have furnished? must you have furnished? must they have furnished?	must I have been furnishing? must you have been furnishing? must he have been furnishing? must we have been furnishing? must you have been furnishing? must they have been furnishing?

Interro-negative form

Simple form	V-ing form
must I not furnish? must you not furnish? must he not furnish? must we not furnish? must you not furnish? must they not furnish?	must I not be furnishing? must you not be furnishing? must he not be furnishing? must we not be furnishing? must you not be furnishing? must they not be furnishing?
Perfect	V-ing perfect
must I not have furnished? must you not have furnished? must he not have furnished? must we not have furnished? must you not have furnished? must they not have furnished?	must I not have been furnishing? must you not have been furnishing? must he not have been furnishing? must we not have been furnishing? must you not have been furnishing? must they not have been furnishing?