English verb conjugation
MUST LIQUEFY

Regular verb: liquefy - liquefied - liquefied

Affirmation

Simple form	V-ing form
I must liquefy you must liquefy he must liquefy we must liquefy you must liquefy they must liquefy	I must be liquefying you must be liquefying he must be liquefying we must be liquefying you must be liquefying they must be liquefying
Perfect	V-ing perfect
I must have liquefied you must have liquefied he must have liquefied we must have liquefied you must have liquefied they must have liquefied	I must have been liquefying you must have been liquefying he must have been liquefying we must have been liquefying you must have been liquefying they must have been liquefying

Negation

Simple form	V-ing form
I mustn't liquefy you mustn't liquefy he mustn't liquefy we mustn't liquefy you mustn't liquefy they mustn't liquefy	I mustn't be liquefying you mustn't be liquefying he mustn't be liquefying we mustn't be liquefying you mustn't be liquefying they mustn't be liquefying
Perfect	V-ing perfect
I mustn't have liquefied you mustn't have liquefied he mustn't have liquefied we mustn't have liquefied you mustn't have liquefied they mustn't have liquefied	I mustn't have been liquefying you mustn't have been liquefying he mustn't have been liquefying we mustn't have been liquefying you mustn't have been liquefying they mustn't have been liquefying

Interrogative form

Simple form	V-ing form
must I liquefy? must you liquefy? must he liquefy? must we liquefy? must you liquefy? must they liquefy?	must I be liquefying? must you be liquefying? must he be liquefying? must we be liquefying? must you be liquefying? must they be liquefying?
Perfect	V-ing perfect
must I have liquefied? must you have liquefied? must he have liquefied? must we have liquefied? must you have liquefied? must they have liquefied?	must I have been liquefying? must you have been liquefying? must he have been liquefying? must we have been liquefying? must you have been liquefying? must they have been liquefying?

Interro-negative form

Simple form	V-ing form
mustn't I liquefy? mustn't you liquefy? mustn't he liquefy? mustn't we liquefy? mustn't you liquefy? mustn't they liquefy?	mustn't I be liquefying? mustn't you be liquefying? mustn't he be liquefying? mustn't we be liquefying? mustn't you be liquefying? mustn't they be liquefying?
Perfect	V-ing perfect
mustn't I have liquefied? mustn't you have liquefied? mustn't he have liquefied? mustn't we have liquefied? mustn't you have liquefied? mustn't they have liquefied?	mustn't I have been liquefying? mustn't you have been liquefying? mustn't he have been liquefying? mustn't we have been liquefying? mustn't you have been liquefying? mustn't they have been liquefying?