English verb conjugation
MUST LUBE

Regular verb: lube - lubed - lubed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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