English verb conjugation
MUST LIQUEFY

Regular verb: liquefy - liquefied - liquefied

Affirmation

Simple form	V-ing form
I must liquefy you must liquefy she must liquefy we must liquefy you must liquefy they must liquefy	I must be liquefying you must be liquefying she 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 she 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 she 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 must not liquefy you must not liquefy she must not liquefy we must not liquefy you must not liquefy they must not liquefy	I must not be liquefying you must not be liquefying she must not be liquefying we must not be liquefying you must not be liquefying they must not be liquefying
Perfect	V-ing perfect
I must not have liquefied you must not have liquefied she must not have liquefied we must not have liquefied you must not have liquefied they must not have liquefied	I must not have been liquefying you must not have been liquefying she must not have been liquefying we must not have been liquefying you must not have been liquefying they must not have been liquefying

Interrogative form

Simple form	V-ing form
must I liquefy? must you liquefy? must she liquefy? must we liquefy? must you liquefy? must they liquefy?	must I be liquefying? must you be liquefying? must she 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 she 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 she 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
must I not liquefy? must you not liquefy? must she not liquefy? must we not liquefy? must you not liquefy? must they not liquefy?	must I not be liquefying? must you not be liquefying? must she not be liquefying? must we not be liquefying? must you not be liquefying? must they not be liquefying?
Perfect	V-ing perfect
must I not have liquefied? must you not have liquefied? must she not have liquefied? must we not have liquefied? must you not have liquefied? must they not have liquefied?	must I not have been liquefying? must you not have been liquefying? must she not have been liquefying? must we not have been liquefying? must you not have been liquefying? must they not have been liquefying?