I could overdevelop you could overdevelop she could overdevelop we could overdevelop you could overdevelop they could overdevelop
V-ing form
I could be overdeveloping you could be overdeveloping she could be overdeveloping we could be overdeveloping you could be overdeveloping they could be overdeveloping
Perfect
I could have overdeveloped you could have overdeveloped she could have overdeveloped we could have overdeveloped you could have overdeveloped they could have overdeveloped
V-ing perfect
I could have been overdeveloping you could have been overdeveloping she could have been overdeveloping we could have been overdeveloping you could have been overdeveloping they could have been overdeveloping
Negation
Simple form
I couldn't overdevelop you couldn't overdevelop she couldn't overdevelop we couldn't overdevelop you couldn't overdevelop they couldn't overdevelop
V-ing form
I couldn't be overdeveloping you couldn't be overdeveloping she couldn't be overdeveloping we couldn't be overdeveloping you couldn't be overdeveloping they couldn't be overdeveloping
Perfect
I couldn't have overdeveloped you couldn't have overdeveloped she couldn't have overdeveloped we couldn't have overdeveloped you couldn't have overdeveloped they couldn't have overdeveloped
V-ing perfect
I couldn't have been overdeveloping you couldn't have been overdeveloping she couldn't have been overdeveloping we couldn't have been overdeveloping you couldn't have been overdeveloping they couldn't have been overdeveloping
Interrogative form
Simple form
could I overdevelop? could you overdevelop? could she overdevelop? could we overdevelop? could you overdevelop? could they overdevelop?
V-ing form
could I be overdeveloping? could you be overdeveloping? could she be overdeveloping? could we be overdeveloping? could you be overdeveloping? could they be overdeveloping?
Perfect
could I have overdeveloped? could you have overdeveloped? could she have overdeveloped? could we have overdeveloped? could you have overdeveloped? could they have overdeveloped?
V-ing perfect
could I have been overdeveloping? could you have been overdeveloping? could she have been overdeveloping? could we have been overdeveloping? could you have been overdeveloping? could they have been overdeveloping?
Interro-negative form
Simple form
couldn't I overdevelop? couldn't you overdevelop? couldn't she overdevelop? couldn't we overdevelop? couldn't you overdevelop? couldn't they overdevelop?
V-ing form
couldn't I be overdeveloping? couldn't you be overdeveloping? couldn't she be overdeveloping? couldn't we be overdeveloping? couldn't you be overdeveloping? couldn't they be overdeveloping?
Perfect
couldn't I have overdeveloped? couldn't you have overdeveloped? couldn't she have overdeveloped? couldn't we have overdeveloped? couldn't you have overdeveloped? couldn't they have overdeveloped?
V-ing perfect
couldn't I have been overdeveloping? couldn't you have been overdeveloping? couldn't she have been overdeveloping? couldn't we have been overdeveloping? couldn't you have been overdeveloping? couldn't they have been overdeveloping?