could ballast
Regular verb: ballast - ballasted- ballasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ballast
you could ballast
she could ballast
we could ballast
you could ballast
they could ballast 	I could be ballasting
you could be ballasting
she could be ballasting
we could be ballasting
you could be ballasting
they could be ballasting	I could have ballasted
you could have ballasted
she could have ballasted
we could have ballasted
you could have ballasted
they could have ballasted	I could have been ballasting
you could have been ballasting
she could have been ballasting
we could have been ballasting
you could have been ballasting
they could have been ballasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not ballast
you could not ballast
she could not ballast
we could not ballast
you could not ballast
they could not ballast 	I could not be ballasting
you could not be ballasting
she could not be ballasting
we could not be ballasting
you could not be ballasting
they could not be ballasting	I could not have ballasted
you could not have ballasted
she could not have ballasted
we could not have ballasted
you could not have ballasted
they could not have ballasted	I could not have been ballasting
you could not have been ballasting
she could not have been ballasting
we could not have been ballasting
you could not have been ballasting
they could not have been ballasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ballast?
could you ballast?
could she ballast?
could we ballast?
could you ballast?
could they ballast? 	could I be ballasting?
could you be ballasting?
could she be ballasting?
could we be ballasting?
could you be ballasting?
could they be ballasting? 	could I have ballasted?
could you have ballasted?
could she have ballasted?
could we have ballasted?
could you have ballasted?
could they have ballasted? 	could I have been ballasting?
could you have been ballasting?
could she have been ballasting?
could we have been ballasting?
could you have been ballasting?
could they have been ballasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not ballast?
could you not ballast?
could she not ballast?
could we not ballast?
could you not ballast?
could they not ballast? 	could I not be ballasting?
could you not be ballasting?
could she not be ballasting?
could we not be ballasting?
could you not be ballasting?
could they not be ballasting? 	could I not have ballasted?
could you not have ballasted?
could she not have ballasted?
could we not have ballasted?
could you not have ballasted?
could they not have ballasted? 	could I not have been ballasting?
could you not have been ballasting?
could she not have been ballasting?
could we not have been ballasting?
could you not have been ballasting?
could they not have been ballasting?