must tube-feed
Verbo regular: tube-feed - tube-feeded- tube-feeded

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tube-feed
you must tube-feed
he must tube-feed
we must tube-feed
you must tube-feed
they must tube-feed 	I must be tube-feeding
you must be tube-feeding
he must be tube-feeding
we must be tube-feeding
you must be tube-feeding
they must be tube-feeding	I must have tube-feeded
you must have tube-feeded
he must have tube-feeded
we must have tube-feeded
you must have tube-feeded
they must have tube-feeded	I must have been tube-feeding
you must have been tube-feeding
he must have been tube-feeding
we must have been tube-feeding
you must have been tube-feeding
they must have been tube-feeding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't tube-feed
you mustn't tube-feed
he mustn't tube-feed
we mustn't tube-feed
you mustn't tube-feed
they mustn't tube-feed 	I mustn't be tube-feeding
you mustn't be tube-feeding
he mustn't be tube-feeding
we mustn't be tube-feeding
you mustn't be tube-feeding
they mustn't be tube-feeding	I mustn't have tube-feeded
you mustn't have tube-feeded
he mustn't have tube-feeded
we mustn't have tube-feeded
you mustn't have tube-feeded
they mustn't have tube-feeded	I mustn't have been tube-feeding
you mustn't have been tube-feeding
he mustn't have been tube-feeding
we mustn't have been tube-feeding
you mustn't have been tube-feeding
they mustn't have been tube-feeding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tube-feed?
must you tube-feed?
must he tube-feed?
must we tube-feed?
must you tube-feed?
must they tube-feed? 	must I be tube-feeding?
must you be tube-feeding?
must he be tube-feeding?
must we be tube-feeding?
must you be tube-feeding?
must they be tube-feeding? 	must I have tube-feeded?
must you have tube-feeded?
must he have tube-feeded?
must we have tube-feeded?
must you have tube-feeded?
must they have tube-feeded? 	must I have been tube-feeding?
must you have been tube-feeding?
must he have been tube-feeding?
must we have been tube-feeding?
must you have been tube-feeding?
must they have been tube-feeding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I tube-feed?
mustn't you tube-feed?
mustn't he tube-feed?
mustn't we tube-feed?
mustn't you tube-feed?
mustn't they tube-feed? 	mustn't I be tube-feeding?
mustn't you be tube-feeding?
mustn't he be tube-feeding?
mustn't we be tube-feeding?
mustn't you be tube-feeding?
mustn't they be tube-feeding? 	mustn't I have tube-feeded?
mustn't you have tube-feeded?
mustn't he have tube-feeded?
mustn't we have tube-feeded?
mustn't you have tube-feeded?
mustn't they have tube-feeded? 	mustn't I have been tube-feeding?
mustn't you have been tube-feeding?
mustn't he have been tube-feeding?
mustn't we have been tube-feeding?
mustn't you have been tube-feeding?
mustn't they have been tube-feeding?