English verb conjugation
COULD AUGMENT

Regular verb: augment - augmented - augmented

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I couldn't augment you couldn't augment she couldn't augment we couldn't augment you couldn't augment they couldn't augment	I couldn't be augmenting you couldn't be augmenting she couldn't be augmenting we couldn't be augmenting you couldn't be augmenting they couldn't be augmenting
Perfect	V-ing perfect
I couldn't have augmented you couldn't have augmented she couldn't have augmented we couldn't have augmented you couldn't have augmented they couldn't have augmented	I couldn't have been augmenting you couldn't have been augmenting she couldn't have been augmenting we couldn't have been augmenting you couldn't have been augmenting they couldn't have been augmenting

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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
couldn't I augment? couldn't you augment? couldn't she augment? couldn't we augment? couldn't you augment? couldn't they augment?	couldn't I be augmenting? couldn't you be augmenting? couldn't she be augmenting? couldn't we be augmenting? couldn't you be augmenting? couldn't they be augmenting?
Perfect	V-ing perfect
couldn't I have augmented? couldn't you have augmented? couldn't she have augmented? couldn't we have augmented? couldn't you have augmented? couldn't they have augmented?	couldn't I have been augmenting? couldn't you have been augmenting? couldn't she have been augmenting? couldn't we have been augmenting? couldn't you have been augmenting? couldn't they have been augmenting?