could augment
Regular verb: augment - augmented- augmented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could augment
you could augment
she could augment
we could augment
you could augment
they could augment 	I could be augmenting
you could be augmenting
she could be augmenting
we could be augmenting
you could be augmenting
they could be augmenting	I could have augmented
you could have augmented
she could have augmented
we could have augmented
you could have augmented
they could have augmented	I could have been augmenting
you could have been augmenting
she could have been augmenting
we could have been augmenting
you could have been augmenting
they could have been augmenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not augment
you could not augment
she could not augment
we could not augment
you could not augment
they could not augment 	I could not be augmenting
you could not be augmenting
she could not be augmenting
we could not be augmenting
you could not be augmenting
they could not be augmenting	I could not have augmented
you could not have augmented
she could not have augmented
we could not have augmented
you could not have augmented
they could not have augmented	I could not have been augmenting
you could not have been augmenting
she could not have been augmenting
we could not have been augmenting
you could not have been augmenting
they could not have been augmenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I augment?
could you augment?
could she augment?
could we augment?
could you augment?
could they augment? 	could I be augmenting?
could you be augmenting?
could she be augmenting?
could we be augmenting?
could you be augmenting?
could they be augmenting? 	could I have augmented?
could you have augmented?
could she have augmented?
could we have augmented?
could you have augmented?
could they have augmented? 	could I have been augmenting?
could you have been augmenting?
could she have been augmenting?
could we have been augmenting?
could you have been augmenting?
could they have been augmenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not augment?
could you not augment?
could she not augment?
could we not augment?
could you not augment?
could they not augment? 	could I not be augmenting?
could you not be augmenting?
could she not be augmenting?
could we not be augmenting?
could you not be augmenting?
could they not be augmenting? 	could I not have augmented?
could you not have augmented?
could she not have augmented?
could we not have augmented?
could you not have augmented?
could they not have augmented? 	could I not have been augmenting?
could you not have been augmenting?
could she not have been augmenting?
could we not have been augmenting?
could you not have been augmenting?
could they not have been augmenting?