English verb conjugation
MUST IMPEDE

Regular verb: impede - impeded - impeded

Affirmation

Simple form	V-ing form
I must impede you must impede he must impede we must impede you must impede they must impede	I must be impeding you must be impeding he must be impeding we must be impeding you must be impeding they must be impeding
Perfect	V-ing perfect
I must have impeded you must have impeded he must have impeded we must have impeded you must have impeded they must have impeded	I must have been impeding you must have been impeding he must have been impeding we must have been impeding you must have been impeding they must have been impeding

Negation

Simple form	V-ing form
I mustn't impede you mustn't impede he mustn't impede we mustn't impede you mustn't impede they mustn't impede	I mustn't be impeding you mustn't be impeding he mustn't be impeding we mustn't be impeding you mustn't be impeding they mustn't be impeding
Perfect	V-ing perfect
I mustn't have impeded you mustn't have impeded he mustn't have impeded we mustn't have impeded you mustn't have impeded they mustn't have impeded	I mustn't have been impeding you mustn't have been impeding he mustn't have been impeding we mustn't have been impeding you mustn't have been impeding they mustn't have been impeding

Interrogative form

Simple form	V-ing form
must I impede? must you impede? must he impede? must we impede? must you impede? must they impede?	must I be impeding? must you be impeding? must he be impeding? must we be impeding? must you be impeding? must they be impeding?
Perfect	V-ing perfect
must I have impeded? must you have impeded? must he have impeded? must we have impeded? must you have impeded? must they have impeded?	must I have been impeding? must you have been impeding? must he have been impeding? must we have been impeding? must you have been impeding? must they have been impeding?

Interro-negative form

Simple form	V-ing form
mustn't I impede? mustn't you impede? mustn't he impede? mustn't we impede? mustn't you impede? mustn't they impede?	mustn't I be impeding? mustn't you be impeding? mustn't he be impeding? mustn't we be impeding? mustn't you be impeding? mustn't they be impeding?
Perfect	V-ing perfect
mustn't I have impeded? mustn't you have impeded? mustn't he have impeded? mustn't we have impeded? mustn't you have impeded? mustn't they have impeded?	mustn't I have been impeding? mustn't you have been impeding? mustn't he have been impeding? mustn't we have been impeding? mustn't you have been impeding? mustn't they have been impeding?