could chloroform
Regular verb: chloroform - chloroformed- chloroformed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could chloroform
you could chloroform
he could chloroform
we could chloroform
you could chloroform
they could chloroform 	I could be chloroforming
you could be chloroforming
he could be chloroforming
we could be chloroforming
you could be chloroforming
they could be chloroforming	I could have chloroformed
you could have chloroformed
he could have chloroformed
we could have chloroformed
you could have chloroformed
they could have chloroformed	I could have been chloroforming
you could have been chloroforming
he could have been chloroforming
we could have been chloroforming
you could have been chloroforming
they could have been chloroforming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't chloroform
you couldn't chloroform
he couldn't chloroform
we couldn't chloroform
you couldn't chloroform
they couldn't chloroform 	I couldn't be chloroforming
you couldn't be chloroforming
he couldn't be chloroforming
we couldn't be chloroforming
you couldn't be chloroforming
they couldn't be chloroforming	I couldn't have chloroformed
you couldn't have chloroformed
he couldn't have chloroformed
we couldn't have chloroformed
you couldn't have chloroformed
they couldn't have chloroformed	I couldn't have been chloroforming
you couldn't have been chloroforming
he couldn't have been chloroforming
we couldn't have been chloroforming
you couldn't have been chloroforming
they couldn't have been chloroforming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I chloroform?
could you chloroform?
could he chloroform?
could we chloroform?
could you chloroform?
could they chloroform? 	could I be chloroforming?
could you be chloroforming?
could he be chloroforming?
could we be chloroforming?
could you be chloroforming?
could they be chloroforming? 	could I have chloroformed?
could you have chloroformed?
could he have chloroformed?
could we have chloroformed?
could you have chloroformed?
could they have chloroformed? 	could I have been chloroforming?
could you have been chloroforming?
could he have been chloroforming?
could we have been chloroforming?
could you have been chloroforming?
could they have been chloroforming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I chloroform?
couldn't you chloroform?
couldn't he chloroform?
couldn't we chloroform?
couldn't you chloroform?
couldn't they chloroform? 	couldn't I be chloroforming?
couldn't you be chloroforming?
couldn't he be chloroforming?
couldn't we be chloroforming?
couldn't you be chloroforming?
couldn't they be chloroforming? 	couldn't I have chloroformed?
couldn't you have chloroformed?
couldn't he have chloroformed?
couldn't we have chloroformed?
couldn't you have chloroformed?
couldn't they have chloroformed? 	couldn't I have been chloroforming?
couldn't you have been chloroforming?
couldn't he have been chloroforming?
couldn't we have been chloroforming?
couldn't you have been chloroforming?
couldn't they have been chloroforming?