English verb conjugation
MUST BLUSH

Regular verb: blush - blushed - blushed

Affirmation

Simple form	V-ing form
I must blush you must blush he must blush we must blush you must blush they must blush	I must be blushing you must be blushing he must be blushing we must be blushing you must be blushing they must be blushing
Perfect	V-ing perfect
I must have blushed you must have blushed he must have blushed we must have blushed you must have blushed they must have blushed	I must have been blushing you must have been blushing he must have been blushing we must have been blushing you must have been blushing they must have been blushing

Negation

Simple form	V-ing form
I mustn't blush you mustn't blush he mustn't blush we mustn't blush you mustn't blush they mustn't blush	I mustn't be blushing you mustn't be blushing he mustn't be blushing we mustn't be blushing you mustn't be blushing they mustn't be blushing
Perfect	V-ing perfect
I mustn't have blushed you mustn't have blushed he mustn't have blushed we mustn't have blushed you mustn't have blushed they mustn't have blushed	I mustn't have been blushing you mustn't have been blushing he mustn't have been blushing we mustn't have been blushing you mustn't have been blushing they mustn't have been blushing

Interrogative form

Simple form	V-ing form
must I blush? must you blush? must he blush? must we blush? must you blush? must they blush?	must I be blushing? must you be blushing? must he be blushing? must we be blushing? must you be blushing? must they be blushing?
Perfect	V-ing perfect
must I have blushed? must you have blushed? must he have blushed? must we have blushed? must you have blushed? must they have blushed?	must I have been blushing? must you have been blushing? must he have been blushing? must we have been blushing? must you have been blushing? must they have been blushing?

Interro-negative form

Simple form	V-ing form
mustn't I blush? mustn't you blush? mustn't he blush? mustn't we blush? mustn't you blush? mustn't they blush?	mustn't I be blushing? mustn't you be blushing? mustn't he be blushing? mustn't we be blushing? mustn't you be blushing? mustn't they be blushing?
Perfect	V-ing perfect
mustn't I have blushed? mustn't you have blushed? mustn't he have blushed? mustn't we have blushed? mustn't you have blushed? mustn't they have blushed?	mustn't I have been blushing? mustn't you have been blushing? mustn't he have been blushing? mustn't we have been blushing? mustn't you have been blushing? mustn't they have been blushing?