masculino | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
Conjugación del verbo inglés MUST OBSERVE
Verbo regular: observe - observed - observed
Afirmación
Forma simple
I must observeyou must observe
she must observe
we must observe
you must observe
they must observe
Forma con V-ing
I must be observingyou must be observing
she must be observing
we must be observing
you must be observing
they must be observing
Perfecto
I must have observedyou must have observed
she must have observed
we must have observed
you must have observed
they must have observed
Perfecto con V-ing
I must have been observingyou must have been observing
she must have been observing
we must have been observing
you must have been observing
they must have been observing
Negación
Forma simple
I mustn't observeyou mustn't observe
she mustn't observe
we mustn't observe
you mustn't observe
they mustn't observe
Forma con V-ing
I mustn't be observingyou mustn't be observing
she mustn't be observing
we mustn't be observing
you mustn't be observing
they mustn't be observing
Perfecto
I mustn't have observedyou mustn't have observed
she mustn't have observed
we mustn't have observed
you mustn't have observed
they mustn't have observed
Perfecto con V-ing
I mustn't have been observingyou mustn't have been observing
she mustn't have been observing
we mustn't have been observing
you mustn't have been observing
they mustn't have been observing
Forma interrogativa
Forma simple
must I observe?must you observe?
must she observe?
must we observe?
must you observe?
must they observe?
Forma con V-ing
must I be observing?must you be observing?
must she be observing?
must we be observing?
must you be observing?
must they be observing?
Perfecto
must I have observed?must you have observed?
must she have observed?
must we have observed?
must you have observed?
must they have observed?
Perfecto con V-ing
must I have been observing?must you have been observing?
must she have been observing?
must we have been observing?
must you have been observing?
must they have been observing?
Forma interro-negativa
Forma simple
mustn't I observe?mustn't you observe?
mustn't she observe?
mustn't we observe?
mustn't you observe?
mustn't they observe?
Forma con V-ing
mustn't I be observing?mustn't you be observing?
mustn't she be observing?
mustn't we be observing?
mustn't you be observing?
mustn't they be observing?
Perfecto
mustn't I have observed?mustn't you have observed?
mustn't she have observed?
mustn't we have observed?
mustn't you have observed?
mustn't they have observed?
Perfecto con V-ing
mustn't I have been observing?mustn't you have been observing?
mustn't she have been observing?
mustn't we have been observing?
mustn't you have been observing?
mustn't they have been observing?