Conjugación del verbo inglés MUST CONCERN
Verbo regular: concern - concerned - concerned
Afirmación
Forma simple
I must concernyou must concern
he must concern
we must concern
you must concern
they must concern
Forma con V-ing
I must be concerningyou must be concerning
he must be concerning
we must be concerning
you must be concerning
they must be concerning
Perfecto
I must have concernedyou must have concerned
he must have concerned
we must have concerned
you must have concerned
they must have concerned
Perfecto con V-ing
I must have been concerningyou must have been concerning
he must have been concerning
we must have been concerning
you must have been concerning
they must have been concerning
Negación
Forma simple
I must not concernyou must not concern
he must not concern
we must not concern
you must not concern
they must not concern
Forma con V-ing
I must not be concerningyou must not be concerning
he must not be concerning
we must not be concerning
you must not be concerning
they must not be concerning
Perfecto
I must not have concernedyou must not have concerned
he must not have concerned
we must not have concerned
you must not have concerned
they must not have concerned
Perfecto con V-ing
I must not have been concerningyou must not have been concerning
he must not have been concerning
we must not have been concerning
you must not have been concerning
they must not have been concerning
Forma interrogativa
Forma simple
must I concern?must you concern?
must he concern?
must we concern?
must you concern?
must they concern?
Forma con V-ing
must I be concerning?must you be concerning?
must he be concerning?
must we be concerning?
must you be concerning?
must they be concerning?
Perfecto
must I have concerned?must you have concerned?
must he have concerned?
must we have concerned?
must you have concerned?
must they have concerned?
Perfecto con V-ing
must I have been concerning?must you have been concerning?
must he have been concerning?
must we have been concerning?
must you have been concerning?
must they have been concerning?
Forma interro-negativa
Forma simple
must I not concern?must you not concern?
must he not concern?
must we not concern?
must you not concern?
must they not concern?
Forma con V-ing
must I not be concerning?must you not be concerning?
must he not be concerning?
must we not be concerning?
must you not be concerning?
must they not be concerning?
Perfecto
must I not have concerned?must you not have concerned?
must he not have concerned?
must we not have concerned?
must you not have concerned?
must they not have concerned?
Perfecto con V-ing
must I not have been concerning?must you not have been concerning?
must he not have been concerning?
must we not have been concerning?
must you not have been concerning?
must they not have been concerning?