Conjugación del verbo inglés
MUST DERIVE

Verbo regular: derive - derived - derived

Afirmación

Forma simple	Forma con V-ing
I must derive you must derive he must derive we must derive you must derive they must derive	I must be deriving you must be deriving he must be deriving we must be deriving you must be deriving they must be deriving
Perfecto	Perfecto con V-ing
I must have derived you must have derived he must have derived we must have derived you must have derived they must have derived	I must have been deriving you must have been deriving he must have been deriving we must have been deriving you must have been deriving they must have been deriving

Negación

Forma simple	Forma con V-ing
I mustn't derive you mustn't derive he mustn't derive we mustn't derive you mustn't derive they mustn't derive	I mustn't be deriving you mustn't be deriving he mustn't be deriving we mustn't be deriving you mustn't be deriving they mustn't be deriving
Perfecto	Perfecto con V-ing
I mustn't have derived you mustn't have derived he mustn't have derived we mustn't have derived you mustn't have derived they mustn't have derived	I mustn't have been deriving you mustn't have been deriving he mustn't have been deriving we mustn't have been deriving you mustn't have been deriving they mustn't have been deriving

Forma interrogativa

Forma simple	Forma con V-ing
must I derive? must you derive? must he derive? must we derive? must you derive? must they derive?	must I be deriving? must you be deriving? must he be deriving? must we be deriving? must you be deriving? must they be deriving?
Perfecto	Perfecto con V-ing
must I have derived? must you have derived? must he have derived? must we have derived? must you have derived? must they have derived?	must I have been deriving? must you have been deriving? must he have been deriving? must we have been deriving? must you have been deriving? must they have been deriving?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I derive? mustn't you derive? mustn't he derive? mustn't we derive? mustn't you derive? mustn't they derive?	mustn't I be deriving? mustn't you be deriving? mustn't he be deriving? mustn't we be deriving? mustn't you be deriving? mustn't they be deriving?
Perfecto	Perfecto con V-ing
mustn't I have derived? mustn't you have derived? mustn't he have derived? mustn't we have derived? mustn't you have derived? mustn't they have derived?	mustn't I have been deriving? mustn't you have been deriving? mustn't he have been deriving? mustn't we have been deriving? mustn't you have been deriving? mustn't they have been deriving?