English verb conjugation
MUST FLOW

Regular verb: flow - flowed - flowed

Affirmation

Simple form	V-ing form
I must flow you must flow he must flow we must flow you must flow they must flow	I must be flowing you must be flowing he must be flowing we must be flowing you must be flowing they must be flowing
Perfect	V-ing perfect
I must have flowed you must have flowed he must have flowed we must have flowed you must have flowed they must have flowed	I must have been flowing you must have been flowing he must have been flowing we must have been flowing you must have been flowing they must have been flowing

Negation

Simple form	V-ing form
I must not flow you must not flow he must not flow we must not flow you must not flow they must not flow	I must not be flowing you must not be flowing he must not be flowing we must not be flowing you must not be flowing they must not be flowing
Perfect	V-ing perfect
I must not have flowed you must not have flowed he must not have flowed we must not have flowed you must not have flowed they must not have flowed	I must not have been flowing you must not have been flowing he must not have been flowing we must not have been flowing you must not have been flowing they must not have been flowing

Interrogative form

Simple form	V-ing form
must I flow? must you flow? must he flow? must we flow? must you flow? must they flow?	must I be flowing? must you be flowing? must he be flowing? must we be flowing? must you be flowing? must they be flowing?
Perfect	V-ing perfect
must I have flowed? must you have flowed? must he have flowed? must we have flowed? must you have flowed? must they have flowed?	must I have been flowing? must you have been flowing? must he have been flowing? must we have been flowing? must you have been flowing? must they have been flowing?

Interro-negative form

Simple form	V-ing form
must I not flow? must you not flow? must he not flow? must we not flow? must you not flow? must they not flow?	must I not be flowing? must you not be flowing? must he not be flowing? must we not be flowing? must you not be flowing? must they not be flowing?
Perfect	V-ing perfect
must I not have flowed? must you not have flowed? must he not have flowed? must we not have flowed? must you not have flowed? must they not have flowed?	must I not have been flowing? must you not have been flowing? must he not have been flowing? must we not have been flowing? must you not have been flowing? must they not have been flowing?