could promo
Regular verb: promo - promoed- promoed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could promo
you could promo
he could promo
we could promo
you could promo
they could promo 	I could be promoing
you could be promoing
he could be promoing
we could be promoing
you could be promoing
they could be promoing	I could have promoed
you could have promoed
he could have promoed
we could have promoed
you could have promoed
they could have promoed	I could have been promoing
you could have been promoing
he could have been promoing
we could have been promoing
you could have been promoing
they could have been promoing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't promo
you couldn't promo
he couldn't promo
we couldn't promo
you couldn't promo
they couldn't promo 	I couldn't be promoing
you couldn't be promoing
he couldn't be promoing
we couldn't be promoing
you couldn't be promoing
they couldn't be promoing	I couldn't have promoed
you couldn't have promoed
he couldn't have promoed
we couldn't have promoed
you couldn't have promoed
they couldn't have promoed	I couldn't have been promoing
you couldn't have been promoing
he couldn't have been promoing
we couldn't have been promoing
you couldn't have been promoing
they couldn't have been promoing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I promo?
could you promo?
could he promo?
could we promo?
could you promo?
could they promo? 	could I be promoing?
could you be promoing?
could he be promoing?
could we be promoing?
could you be promoing?
could they be promoing? 	could I have promoed?
could you have promoed?
could he have promoed?
could we have promoed?
could you have promoed?
could they have promoed? 	could I have been promoing?
could you have been promoing?
could he have been promoing?
could we have been promoing?
could you have been promoing?
could they have been promoing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I promo?
couldn't you promo?
couldn't he promo?
couldn't we promo?
couldn't you promo?
couldn't they promo? 	couldn't I be promoing?
couldn't you be promoing?
couldn't he be promoing?
couldn't we be promoing?
couldn't you be promoing?
couldn't they be promoing? 	couldn't I have promoed?
couldn't you have promoed?
couldn't he have promoed?
couldn't we have promoed?
couldn't you have promoed?
couldn't they have promoed? 	couldn't I have been promoing?
couldn't you have been promoing?
couldn't he have been promoing?
couldn't we have been promoing?
couldn't you have been promoing?
couldn't they have been promoing?