English verb conjugation
COULD LUBE

Regular verb: lube - lubed - lubed

Affirmation

Simple form	V-ing form
I could lube you could lube he could lube we could lube you could lube they could lube	I could be lubing you could be lubing he could be lubing we could be lubing you could be lubing they could be lubing
Perfect	V-ing perfect
I could have lubed you could have lubed he could have lubed we could have lubed you could have lubed they could have lubed	I could have been lubing you could have been lubing he could have been lubing we could have been lubing you could have been lubing they could have been lubing

Negation

Simple form	V-ing form
I couldn't lube you couldn't lube he couldn't lube we couldn't lube you couldn't lube they couldn't lube	I couldn't be lubing you couldn't be lubing he couldn't be lubing we couldn't be lubing you couldn't be lubing they couldn't be lubing
Perfect	V-ing perfect
I couldn't have lubed you couldn't have lubed he couldn't have lubed we couldn't have lubed you couldn't have lubed they couldn't have lubed	I couldn't have been lubing you couldn't have been lubing he couldn't have been lubing we couldn't have been lubing you couldn't have been lubing they couldn't have been lubing

Interrogative form

Simple form	V-ing form
could I lube? could you lube? could he lube? could we lube? could you lube? could they lube?	could I be lubing? could you be lubing? could he be lubing? could we be lubing? could you be lubing? could they be lubing?
Perfect	V-ing perfect
could I have lubed? could you have lubed? could he have lubed? could we have lubed? could you have lubed? could they have lubed?	could I have been lubing? could you have been lubing? could he have been lubing? could we have been lubing? could you have been lubing? could they have been lubing?

Interro-negative form

Simple form	V-ing form
couldn't I lube? couldn't you lube? couldn't he lube? couldn't we lube? couldn't you lube? couldn't they lube?	couldn't I be lubing? couldn't you be lubing? couldn't he be lubing? couldn't we be lubing? couldn't you be lubing? couldn't they be lubing?
Perfect	V-ing perfect
couldn't I have lubed? couldn't you have lubed? couldn't he have lubed? couldn't we have lubed? couldn't you have lubed? couldn't they have lubed?	couldn't I have been lubing? couldn't you have been lubing? couldn't he have been lubing? couldn't we have been lubing? couldn't you have been lubing? couldn't they have been lubing?