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 must not impede you must not impede he must not impede we must not impede you must not impede they must not impede	I must not be impeding you must not be impeding he must not be impeding we must not be impeding you must not be impeding they must not be impeding
Perfect	V-ing perfect
I must not have impeded you must not have impeded he must not have impeded we must not have impeded you must not have impeded they must not have impeded	I must not have been impeding you must not have been impeding he must not have been impeding we must not have been impeding you must not have been impeding they must not 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
must I not impede? must you not impede? must he not impede? must we not impede? must you not impede? must they not impede?	must I not be impeding? must you not be impeding? must he not be impeding? must we not be impeding? must you not be impeding? must they not be impeding?
Perfect	V-ing perfect
must I not have impeded? must you not have impeded? must he not have impeded? must we not have impeded? must you not have impeded? must they not have impeded?	must I not have been impeding? must you not have been impeding? must he not have been impeding? must we not have been impeding? must you not have been impeding? must they not have been impeding?