English verb conjugation
COULD IMPEDE

Regular verb: impede - impeded - impeded

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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