Conjugación del verbo inglés
MUST GRAIN

Verbo regular: grain - grained - grained

Afirmación

Forma simple	Forma con V-ing
I must grain you must grain he must grain we must grain you must grain they must grain	I must be graining you must be graining he must be graining we must be graining you must be graining they must be graining
Perfecto	Perfecto con V-ing
I must have grained you must have grained he must have grained we must have grained you must have grained they must have grained	I must have been graining you must have been graining he must have been graining we must have been graining you must have been graining they must have been graining

Negación

Forma simple	Forma con V-ing
I mustn't grain you mustn't grain he mustn't grain we mustn't grain you mustn't grain they mustn't grain	I mustn't be graining you mustn't be graining he mustn't be graining we mustn't be graining you mustn't be graining they mustn't be graining
Perfecto	Perfecto con V-ing
I mustn't have grained you mustn't have grained he mustn't have grained we mustn't have grained you mustn't have grained they mustn't have grained	I mustn't have been graining you mustn't have been graining he mustn't have been graining we mustn't have been graining you mustn't have been graining they mustn't have been graining

Forma interrogativa

Forma simple	Forma con V-ing
must I grain? must you grain? must he grain? must we grain? must you grain? must they grain?	must I be graining? must you be graining? must he be graining? must we be graining? must you be graining? must they be graining?
Perfecto	Perfecto con V-ing
must I have grained? must you have grained? must he have grained? must we have grained? must you have grained? must they have grained?	must I have been graining? must you have been graining? must he have been graining? must we have been graining? must you have been graining? must they have been graining?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I grain? mustn't you grain? mustn't he grain? mustn't we grain? mustn't you grain? mustn't they grain?	mustn't I be graining? mustn't you be graining? mustn't he be graining? mustn't we be graining? mustn't you be graining? mustn't they be graining?
Perfecto	Perfecto con V-ing
mustn't I have grained? mustn't you have grained? mustn't he have grained? mustn't we have grained? mustn't you have grained? mustn't they have grained?	mustn't I have been graining? mustn't you have been graining? mustn't he have been graining? mustn't we have been graining? mustn't you have been graining? mustn't they have been graining?