I must calcify you must calcify she must calcify we must calcify you must calcify they must calcify
Forma con V-ing
I must be calcifying you must be calcifying she must be calcifying we must be calcifying you must be calcifying they must be calcifying
Perfecto
I must have calcified you must have calcified she must have calcified we must have calcified you must have calcified they must have calcified
Perfecto con V-ing
I must have been calcifying you must have been calcifying she must have been calcifying we must have been calcifying you must have been calcifying they must have been calcifying
Negación
Forma simple
I must not calcify you must not calcify she must not calcify we must not calcify you must not calcify they must not calcify
Forma con V-ing
I must not be calcifying you must not be calcifying she must not be calcifying we must not be calcifying you must not be calcifying they must not be calcifying
Perfecto
I must not have calcified you must not have calcified she must not have calcified we must not have calcified you must not have calcified they must not have calcified
Perfecto con V-ing
I must not have been calcifying you must not have been calcifying she must not have been calcifying we must not have been calcifying you must not have been calcifying they must not have been calcifying
Forma interrogativa
Forma simple
must I calcify? must you calcify? must she calcify? must we calcify? must you calcify? must they calcify?
Forma con V-ing
must I be calcifying? must you be calcifying? must she be calcifying? must we be calcifying? must you be calcifying? must they be calcifying?
Perfecto
must I have calcified? must you have calcified? must she have calcified? must we have calcified? must you have calcified? must they have calcified?
Perfecto con V-ing
must I have been calcifying? must you have been calcifying? must she have been calcifying? must we have been calcifying? must you have been calcifying? must they have been calcifying?
Forma interro-negativa
Forma simple
must I not calcify? must you not calcify? must she not calcify? must we not calcify? must you not calcify? must they not calcify?
Forma con V-ing
must I not be calcifying? must you not be calcifying? must she not be calcifying? must we not be calcifying? must you not be calcifying? must they not be calcifying?
Perfecto
must I not have calcified? must you not have calcified? must she not have calcified? must we not have calcified? must you not have calcified? must they not have calcified?
Perfecto con V-ing
must I not have been calcifying? must you not have been calcifying? must she not have been calcifying? must we not have been calcifying? must you not have been calcifying? must they not have been calcifying?