I must cache you must cache she must cache we must cache you must cache they must cache
Forma con V-ing
I must be caching you must be caching she must be caching we must be caching you must be caching they must be caching
Perfecto
I must have cached you must have cached she must have cached we must have cached you must have cached they must have cached
Perfecto con V-ing
I must have been caching you must have been caching she must have been caching we must have been caching you must have been caching they must have been caching
Negación
Forma simple
I must not cache you must not cache she must not cache we must not cache you must not cache they must not cache
Forma con V-ing
I must not be caching you must not be caching she must not be caching we must not be caching you must not be caching they must not be caching
Perfecto
I must not have cached you must not have cached she must not have cached we must not have cached you must not have cached they must not have cached
Perfecto con V-ing
I must not have been caching you must not have been caching she must not have been caching we must not have been caching you must not have been caching they must not have been caching
Forma interrogativa
Forma simple
must I cache? must you cache? must she cache? must we cache? must you cache? must they cache?
Forma con V-ing
must I be caching? must you be caching? must she be caching? must we be caching? must you be caching? must they be caching?
Perfecto
must I have cached? must you have cached? must she have cached? must we have cached? must you have cached? must they have cached?
Perfecto con V-ing
must I have been caching? must you have been caching? must she have been caching? must we have been caching? must you have been caching? must they have been caching?
Forma interro-negativa
Forma simple
must I not cache? must you not cache? must she not cache? must we not cache? must you not cache? must they not cache?
Forma con V-ing
must I not be caching? must you not be caching? must she not be caching? must we not be caching? must you not be caching? must they not be caching?
Perfecto
must I not have cached? must you not have cached? must she not have cached? must we not have cached? must you not have cached? must they not have cached?
Perfecto con V-ing
must I not have been caching? must you not have been caching? must she not have been caching? must we not have been caching? must you not have been caching? must they not have been caching?