could impel
Regular verb: impel - impelled- impelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?