English verb conjugation
MUST FRESHEN

Regular verb: freshen - freshened - freshened

Affirmation

Simple form	V-ing form
I must freshen you must freshen he must freshen we must freshen you must freshen they must freshen	I must be freshening you must be freshening he must be freshening we must be freshening you must be freshening they must be freshening
Perfect	V-ing perfect
I must have freshened you must have freshened he must have freshened we must have freshened you must have freshened they must have freshened	I must have been freshening you must have been freshening he must have been freshening we must have been freshening you must have been freshening they must have been freshening

Negation

Simple form	V-ing form
I mustn't freshen you mustn't freshen he mustn't freshen we mustn't freshen you mustn't freshen they mustn't freshen	I mustn't be freshening you mustn't be freshening he mustn't be freshening we mustn't be freshening you mustn't be freshening they mustn't be freshening
Perfect	V-ing perfect
I mustn't have freshened you mustn't have freshened he mustn't have freshened we mustn't have freshened you mustn't have freshened they mustn't have freshened	I mustn't have been freshening you mustn't have been freshening he mustn't have been freshening we mustn't have been freshening you mustn't have been freshening they mustn't have been freshening

Interrogative form

Simple form	V-ing form
must I freshen? must you freshen? must he freshen? must we freshen? must you freshen? must they freshen?	must I be freshening? must you be freshening? must he be freshening? must we be freshening? must you be freshening? must they be freshening?
Perfect	V-ing perfect
must I have freshened? must you have freshened? must he have freshened? must we have freshened? must you have freshened? must they have freshened?	must I have been freshening? must you have been freshening? must he have been freshening? must we have been freshening? must you have been freshening? must they have been freshening?

Interro-negative form

Simple form	V-ing form
mustn't I freshen? mustn't you freshen? mustn't he freshen? mustn't we freshen? mustn't you freshen? mustn't they freshen?	mustn't I be freshening? mustn't you be freshening? mustn't he be freshening? mustn't we be freshening? mustn't you be freshening? mustn't they be freshening?
Perfect	V-ing perfect
mustn't I have freshened? mustn't you have freshened? mustn't he have freshened? mustn't we have freshened? mustn't you have freshened? mustn't they have freshened?	mustn't I have been freshening? mustn't you have been freshening? mustn't he have been freshening? mustn't we have been freshening? mustn't you have been freshening? mustn't they have been freshening?