could chloroform
Regular verb: chloroform - chloroformed- chloroformed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could chloroform
you could chloroform
she could chloroform
we could chloroform
you could chloroform
they could chloroform 	I could be chloroforming
you could be chloroforming
she could be chloroforming
we could be chloroforming
you could be chloroforming
they could be chloroforming	I could have chloroformed
you could have chloroformed
she 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
she 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 could not chloroform
you could not chloroform
she could not chloroform
we could not chloroform
you could not chloroform
they could not chloroform 	I could not be chloroforming
you could not be chloroforming
she could not be chloroforming
we could not be chloroforming
you could not be chloroforming
they could not be chloroforming	I could not have chloroformed
you could not have chloroformed
she could not have chloroformed
we could not have chloroformed
you could not have chloroformed
they could not have chloroformed	I could not have been chloroforming
you could not have been chloroforming
she could not have been chloroforming
we could not have been chloroforming
you could not have been chloroforming
they could not have been chloroforming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I chloroform?
could you chloroform?
could she chloroform?
could we chloroform?
could you chloroform?
could they chloroform? 	could I be chloroforming?
could you be chloroforming?
could she be chloroforming?
could we be chloroforming?
could you be chloroforming?
could they be chloroforming? 	could I have chloroformed?
could you have chloroformed?
could she 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 she 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 	
could I not chloroform?
could you not chloroform?
could she not chloroform?
could we not chloroform?
could you not chloroform?
could they not chloroform? 	could I not be chloroforming?
could you not be chloroforming?
could she not be chloroforming?
could we not be chloroforming?
could you not be chloroforming?
could they not be chloroforming? 	could I not have chloroformed?
could you not have chloroformed?
could she not have chloroformed?
could we not have chloroformed?
could you not have chloroformed?
could they not have chloroformed? 	could I not have been chloroforming?
could you not have been chloroforming?
could she not have been chloroforming?
could we not have been chloroforming?
could you not have been chloroforming?
could they not have been chloroforming?