could hasten
Regular verb: hasten - hastened- hastened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hasten
you could hasten
she could hasten
we could hasten
you could hasten
they could hasten 	I could be hastening
you could be hastening
she could be hastening
we could be hastening
you could be hastening
they could be hastening	I could have hastened
you could have hastened
she could have hastened
we could have hastened
you could have hastened
they could have hastened	I could have been hastening
you could have been hastening
she could have been hastening
we could have been hastening
you could have been hastening
they could have been hastening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't hasten
you couldn't hasten
she couldn't hasten
we couldn't hasten
you couldn't hasten
they couldn't hasten 	I couldn't be hastening
you couldn't be hastening
she couldn't be hastening
we couldn't be hastening
you couldn't be hastening
they couldn't be hastening	I couldn't have hastened
you couldn't have hastened
she couldn't have hastened
we couldn't have hastened
you couldn't have hastened
they couldn't have hastened	I couldn't have been hastening
you couldn't have been hastening
she couldn't have been hastening
we couldn't have been hastening
you couldn't have been hastening
they couldn't have been hastening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hasten?
could you hasten?
could she hasten?
could we hasten?
could you hasten?
could they hasten? 	could I be hastening?
could you be hastening?
could she be hastening?
could we be hastening?
could you be hastening?
could they be hastening? 	could I have hastened?
could you have hastened?
could she have hastened?
could we have hastened?
could you have hastened?
could they have hastened? 	could I have been hastening?
could you have been hastening?
could she have been hastening?
could we have been hastening?
could you have been hastening?
could they have been hastening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hasten?
couldn't you hasten?
couldn't she hasten?
couldn't we hasten?
couldn't you hasten?
couldn't they hasten? 	couldn't I be hastening?
couldn't you be hastening?
couldn't she be hastening?
couldn't we be hastening?
couldn't you be hastening?
couldn't they be hastening? 	couldn't I have hastened?
couldn't you have hastened?
couldn't she have hastened?
couldn't we have hastened?
couldn't you have hastened?
couldn't they have hastened? 	couldn't I have been hastening?
couldn't you have been hastening?
couldn't she have been hastening?
couldn't we have been hastening?
couldn't you have been hastening?
couldn't they have been hastening?