English verb conjugation
MUST HALF-MAST

Regular verb: half-mast - half-masted - half-masted

Affirmation

Simple form	V-ing form
I must half-mast you must half-mast he must half-mast we must half-mast you must half-mast they must half-mast	I must be half-masting you must be half-masting he must be half-masting we must be half-masting you must be half-masting they must be half-masting
Perfect	V-ing perfect
I must have half-masted you must have half-masted he must have half-masted we must have half-masted you must have half-masted they must have half-masted	I must have been half-masting you must have been half-masting he must have been half-masting we must have been half-masting you must have been half-masting they must have been half-masting

Negation

Simple form	V-ing form
I mustn't half-mast you mustn't half-mast he mustn't half-mast we mustn't half-mast you mustn't half-mast they mustn't half-mast	I mustn't be half-masting you mustn't be half-masting he mustn't be half-masting we mustn't be half-masting you mustn't be half-masting they mustn't be half-masting
Perfect	V-ing perfect
I mustn't have half-masted you mustn't have half-masted he mustn't have half-masted we mustn't have half-masted you mustn't have half-masted they mustn't have half-masted	I mustn't have been half-masting you mustn't have been half-masting he mustn't have been half-masting we mustn't have been half-masting you mustn't have been half-masting they mustn't have been half-masting

Interrogative form

Simple form	V-ing form
must I half-mast? must you half-mast? must he half-mast? must we half-mast? must you half-mast? must they half-mast?	must I be half-masting? must you be half-masting? must he be half-masting? must we be half-masting? must you be half-masting? must they be half-masting?
Perfect	V-ing perfect
must I have half-masted? must you have half-masted? must he have half-masted? must we have half-masted? must you have half-masted? must they have half-masted?	must I have been half-masting? must you have been half-masting? must he have been half-masting? must we have been half-masting? must you have been half-masting? must they have been half-masting?

Interro-negative form

Simple form	V-ing form
mustn't I half-mast? mustn't you half-mast? mustn't he half-mast? mustn't we half-mast? mustn't you half-mast? mustn't they half-mast?	mustn't I be half-masting? mustn't you be half-masting? mustn't he be half-masting? mustn't we be half-masting? mustn't you be half-masting? mustn't they be half-masting?
Perfect	V-ing perfect
mustn't I have half-masted? mustn't you have half-masted? mustn't he have half-masted? mustn't we have half-masted? mustn't you have half-masted? mustn't they have half-masted?	mustn't I have been half-masting? mustn't you have been half-masting? mustn't he have been half-masting? mustn't we have been half-masting? mustn't you have been half-masting? mustn't they have been half-masting?