must liquefy
Verbo regular: liquefy - liquefied- liquefied

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not liquefy
you must not liquefy
he 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
he must not be liquefying
we must not be liquefying
you must not be liquefying
they must not be liquefying	I must not have liquefied
you must not have liquefied
he 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
he must not have been liquefying
we must not have been liquefying
you must not have been liquefying
they must not have been liquefying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not liquefy?
must you not liquefy?
must he 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 he not be liquefying?
must we not be liquefying?
must you not be liquefying?
must they not be liquefying? 	must I not have liquefied?
must you not have liquefied?
must he 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 he not have been liquefying?
must we not have been liquefying?
must you not have been liquefying?
must they not have been liquefying?