I must obligate you must obligate he must obligate we must obligate you must obligate they must obligate
Forma con V-ing
I must be obligating you must be obligating he must be obligating we must be obligating you must be obligating they must be obligating
Perfecto
I must have obligated you must have obligated he must have obligated we must have obligated you must have obligated they must have obligated
Perfecto con V-ing
I must have been obligating you must have been obligating he must have been obligating we must have been obligating you must have been obligating they must have been obligating
Negación
Forma simple
I must not obligate you must not obligate he must not obligate we must not obligate you must not obligate they must not obligate
Forma con V-ing
I must not be obligating you must not be obligating he must not be obligating we must not be obligating you must not be obligating they must not be obligating
Perfecto
I must not have obligated you must not have obligated he must not have obligated we must not have obligated you must not have obligated they must not have obligated
Perfecto con V-ing
I must not have been obligating you must not have been obligating he must not have been obligating we must not have been obligating you must not have been obligating they must not have been obligating
Forma interrogativa
Forma simple
must I obligate? must you obligate? must he obligate? must we obligate? must you obligate? must they obligate?
Forma con V-ing
must I be obligating? must you be obligating? must he be obligating? must we be obligating? must you be obligating? must they be obligating?
Perfecto
must I have obligated? must you have obligated? must he have obligated? must we have obligated? must you have obligated? must they have obligated?
Perfecto con V-ing
must I have been obligating? must you have been obligating? must he have been obligating? must we have been obligating? must you have been obligating? must they have been obligating?
Forma interro-negativa
Forma simple
must I not obligate? must you not obligate? must he not obligate? must we not obligate? must you not obligate? must they not obligate?
Forma con V-ing
must I not be obligating? must you not be obligating? must he not be obligating? must we not be obligating? must you not be obligating? must they not be obligating?
Perfecto
must I not have obligated? must you not have obligated? must he not have obligated? must we not have obligated? must you not have obligated? must they not have obligated?
Perfecto con V-ing
must I not have been obligating? must you not have been obligating? must he not have been obligating? must we not have been obligating? must you not have been obligating? must they not have been obligating?