Conjugación del verbo inglés
MUST PREBOARD

Verbo regular: preboard - preboarded - preboarded

Afirmación

Forma simple	Forma con V-ing
I must preboard you must preboard he must preboard we must preboard you must preboard they must preboard	I must be preboarding you must be preboarding he must be preboarding we must be preboarding you must be preboarding they must be preboarding
Perfecto	Perfecto con V-ing
I must have preboarded you must have preboarded he must have preboarded we must have preboarded you must have preboarded they must have preboarded	I must have been preboarding you must have been preboarding he must have been preboarding we must have been preboarding you must have been preboarding they must have been preboarding

Negación

Forma simple	Forma con V-ing
I mustn't preboard you mustn't preboard he mustn't preboard we mustn't preboard you mustn't preboard they mustn't preboard	I mustn't be preboarding you mustn't be preboarding he mustn't be preboarding we mustn't be preboarding you mustn't be preboarding they mustn't be preboarding
Perfecto	Perfecto con V-ing
I mustn't have preboarded you mustn't have preboarded he mustn't have preboarded we mustn't have preboarded you mustn't have preboarded they mustn't have preboarded	I mustn't have been preboarding you mustn't have been preboarding he mustn't have been preboarding we mustn't have been preboarding you mustn't have been preboarding they mustn't have been preboarding

Forma interrogativa

Forma simple	Forma con V-ing
must I preboard? must you preboard? must he preboard? must we preboard? must you preboard? must they preboard?	must I be preboarding? must you be preboarding? must he be preboarding? must we be preboarding? must you be preboarding? must they be preboarding?
Perfecto	Perfecto con V-ing
must I have preboarded? must you have preboarded? must he have preboarded? must we have preboarded? must you have preboarded? must they have preboarded?	must I have been preboarding? must you have been preboarding? must he have been preboarding? must we have been preboarding? must you have been preboarding? must they have been preboarding?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I preboard? mustn't you preboard? mustn't he preboard? mustn't we preboard? mustn't you preboard? mustn't they preboard?	mustn't I be preboarding? mustn't you be preboarding? mustn't he be preboarding? mustn't we be preboarding? mustn't you be preboarding? mustn't they be preboarding?
Perfecto	Perfecto con V-ing
mustn't I have preboarded? mustn't you have preboarded? mustn't he have preboarded? mustn't we have preboarded? mustn't you have preboarded? mustn't they have preboarded?	mustn't I have been preboarding? mustn't you have been preboarding? mustn't he have been preboarding? mustn't we have been preboarding? mustn't you have been preboarding? mustn't they have been preboarding?