English verb conjugation
MUST PREPOSSESS

Regular verb: prepossess - prepossessed - prepossessed

Affirmation

Simple form	V-ing form
I must prepossess you must prepossess he must prepossess we must prepossess you must prepossess they must prepossess	I must be prepossessing you must be prepossessing he must be prepossessing we must be prepossessing you must be prepossessing they must be prepossessing
Perfect	V-ing perfect
I must have prepossessed you must have prepossessed he must have prepossessed we must have prepossessed you must have prepossessed they must have prepossessed	I must have been prepossessing you must have been prepossessing he must have been prepossessing we must have been prepossessing you must have been prepossessing they must have been prepossessing

Negation

Simple form	V-ing form
I mustn't prepossess you mustn't prepossess he mustn't prepossess we mustn't prepossess you mustn't prepossess they mustn't prepossess	I mustn't be prepossessing you mustn't be prepossessing he mustn't be prepossessing we mustn't be prepossessing you mustn't be prepossessing they mustn't be prepossessing
Perfect	V-ing perfect
I mustn't have prepossessed you mustn't have prepossessed he mustn't have prepossessed we mustn't have prepossessed you mustn't have prepossessed they mustn't have prepossessed	I mustn't have been prepossessing you mustn't have been prepossessing he mustn't have been prepossessing we mustn't have been prepossessing you mustn't have been prepossessing they mustn't have been prepossessing

Interrogative form

Simple form	V-ing form
must I prepossess? must you prepossess? must he prepossess? must we prepossess? must you prepossess? must they prepossess?	must I be prepossessing? must you be prepossessing? must he be prepossessing? must we be prepossessing? must you be prepossessing? must they be prepossessing?
Perfect	V-ing perfect
must I have prepossessed? must you have prepossessed? must he have prepossessed? must we have prepossessed? must you have prepossessed? must they have prepossessed?	must I have been prepossessing? must you have been prepossessing? must he have been prepossessing? must we have been prepossessing? must you have been prepossessing? must they have been prepossessing?

Interro-negative form

Simple form	V-ing form
mustn't I prepossess? mustn't you prepossess? mustn't he prepossess? mustn't we prepossess? mustn't you prepossess? mustn't they prepossess?	mustn't I be prepossessing? mustn't you be prepossessing? mustn't he be prepossessing? mustn't we be prepossessing? mustn't you be prepossessing? mustn't they be prepossessing?
Perfect	V-ing perfect
mustn't I have prepossessed? mustn't you have prepossessed? mustn't he have prepossessed? mustn't we have prepossessed? mustn't you have prepossessed? mustn't they have prepossessed?	mustn't I have been prepossessing? mustn't you have been prepossessing? mustn't he have been prepossessing? mustn't we have been prepossessing? mustn't you have been prepossessing? mustn't they have been prepossessing?