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 mustn't furnish you mustn't furnish he mustn't furnish we mustn't furnish you mustn't furnish they mustn't furnish	I mustn't be furnishing you mustn't be furnishing he mustn't be furnishing we mustn't be furnishing you mustn't be furnishing they mustn't be furnishing
Perfect	V-ing perfect
I mustn't have furnished you mustn't have furnished he mustn't have furnished we mustn't have furnished you mustn't have furnished they mustn't have furnished	I mustn't have been furnishing you mustn't have been furnishing he mustn't have been furnishing we mustn't have been furnishing you mustn't have been furnishing they mustn't 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
mustn't I furnish? mustn't you furnish? mustn't he furnish? mustn't we furnish? mustn't you furnish? mustn't they furnish?	mustn't I be furnishing? mustn't you be furnishing? mustn't he be furnishing? mustn't we be furnishing? mustn't you be furnishing? mustn't they be furnishing?
Perfect	V-ing perfect
mustn't I have furnished? mustn't you have furnished? mustn't he have furnished? mustn't we have furnished? mustn't you have furnished? mustn't they have furnished?	mustn't I have been furnishing? mustn't you have been furnishing? mustn't he have been furnishing? mustn't we have been furnishing? mustn't you have been furnishing? mustn't they have been furnishing?