English verb conjugation
MUST FLICKER

Regular verb: flicker - flickered - flickered

Affirmation

Simple form	V-ing form
I must flicker you must flicker he must flicker we must flicker you must flicker they must flicker	I must be flickering you must be flickering he must be flickering we must be flickering you must be flickering they must be flickering
Perfect	V-ing perfect
I must have flickered you must have flickered he must have flickered we must have flickered you must have flickered they must have flickered	I must have been flickering you must have been flickering he must have been flickering we must have been flickering you must have been flickering they must have been flickering

Negation

Simple form	V-ing form
I mustn't flicker you mustn't flicker he mustn't flicker we mustn't flicker you mustn't flicker they mustn't flicker	I mustn't be flickering you mustn't be flickering he mustn't be flickering we mustn't be flickering you mustn't be flickering they mustn't be flickering
Perfect	V-ing perfect
I mustn't have flickered you mustn't have flickered he mustn't have flickered we mustn't have flickered you mustn't have flickered they mustn't have flickered	I mustn't have been flickering you mustn't have been flickering he mustn't have been flickering we mustn't have been flickering you mustn't have been flickering they mustn't have been flickering

Interrogative form

Simple form	V-ing form
must I flicker? must you flicker? must he flicker? must we flicker? must you flicker? must they flicker?	must I be flickering? must you be flickering? must he be flickering? must we be flickering? must you be flickering? must they be flickering?
Perfect	V-ing perfect
must I have flickered? must you have flickered? must he have flickered? must we have flickered? must you have flickered? must they have flickered?	must I have been flickering? must you have been flickering? must he have been flickering? must we have been flickering? must you have been flickering? must they have been flickering?

Interro-negative form

Simple form	V-ing form
mustn't I flicker? mustn't you flicker? mustn't he flicker? mustn't we flicker? mustn't you flicker? mustn't they flicker?	mustn't I be flickering? mustn't you be flickering? mustn't he be flickering? mustn't we be flickering? mustn't you be flickering? mustn't they be flickering?
Perfect	V-ing perfect
mustn't I have flickered? mustn't you have flickered? mustn't he have flickered? mustn't we have flickered? mustn't you have flickered? mustn't they have flickered?	mustn't I have been flickering? mustn't you have been flickering? mustn't he have been flickering? mustn't we have been flickering? mustn't you have been flickering? mustn't they have been flickering?