could lube
Regular verb: lube - lubed- lubed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?