English verb conjugation
MUST LUBE

Regular verb: lube - lubed - lubed

Affirmation

Simple form	V-ing form
I must lube you must lube she must lube we must lube you must lube they must lube	I must be lubing you must be lubing she 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 she 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 she 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 must not lube you must not lube she must not lube we must not lube you must not lube they must not lube	I must not be lubing you must not be lubing she must not be lubing we must not be lubing you must not be lubing they must not be lubing
Perfect	V-ing perfect
I must not have lubed you must not have lubed she must not have lubed we must not have lubed you must not have lubed they must not have lubed	I must not have been lubing you must not have been lubing she must not have been lubing we must not have been lubing you must not have been lubing they must not have been lubing

Interrogative form

Simple form	V-ing form
must I lube? must you lube? must she lube? must we lube? must you lube? must they lube?	must I be lubing? must you be lubing? must she 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 she 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 she 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
must I not lube? must you not lube? must she not lube? must we not lube? must you not lube? must they not lube?	must I not be lubing? must you not be lubing? must she not be lubing? must we not be lubing? must you not be lubing? must they not be lubing?
Perfect	V-ing perfect
must I not have lubed? must you not have lubed? must she not have lubed? must we not have lubed? must you not have lubed? must they not have lubed?	must I not have been lubing? must you not have been lubing? must she not have been lubing? must we not have been lubing? must you not have been lubing? must they not have been lubing?