English verb conjugation
COULD IMPEL

Regular verb: impel - impelled - impelled

Affirmation

Simple form	V-ing form
I could impel you could impel she could impel we could impel you could impel they could impel	I could be impelling you could be impelling she could be impelling we could be impelling you could be impelling they could be impelling
Perfect	V-ing perfect
I could have impelled you could have impelled she could have impelled we could have impelled you could have impelled they could have impelled	I could have been impelling you could have been impelling she could have been impelling we could have been impelling you could have been impelling they could have been impelling

Negation

Simple form	V-ing form
I couldn't impel you couldn't impel she couldn't impel we couldn't impel you couldn't impel they couldn't impel	I couldn't be impelling you couldn't be impelling she couldn't be impelling we couldn't be impelling you couldn't be impelling they couldn't be impelling
Perfect	V-ing perfect
I couldn't have impelled you couldn't have impelled she couldn't have impelled we couldn't have impelled you couldn't have impelled they couldn't have impelled	I couldn't have been impelling you couldn't have been impelling she couldn't have been impelling we couldn't have been impelling you couldn't have been impelling they couldn't have been impelling

Interrogative form

Simple form	V-ing form
could I impel? could you impel? could she impel? could we impel? could you impel? could they impel?	could I be impelling? could you be impelling? could she be impelling? could we be impelling? could you be impelling? could they be impelling?
Perfect	V-ing perfect
could I have impelled? could you have impelled? could she have impelled? could we have impelled? could you have impelled? could they have impelled?	could I have been impelling? could you have been impelling? could she have been impelling? could we have been impelling? could you have been impelling? could they have been impelling?

Interro-negative form

Simple form	V-ing form
couldn't I impel? couldn't you impel? couldn't she impel? couldn't we impel? couldn't you impel? couldn't they impel?	couldn't I be impelling? couldn't you be impelling? couldn't she be impelling? couldn't we be impelling? couldn't you be impelling? couldn't they be impelling?
Perfect	V-ing perfect
couldn't I have impelled? couldn't you have impelled? couldn't she have impelled? couldn't we have impelled? couldn't you have impelled? couldn't they have impelled?	couldn't I have been impelling? couldn't you have been impelling? couldn't she have been impelling? couldn't we have been impelling? couldn't you have been impelling? couldn't they have been impelling?