I must blister you must blister he must blister we must blister you must blister they must blister
Forma con V-ing
I must be blistering you must be blistering he must be blistering we must be blistering you must be blistering they must be blistering
Perfecto
I must have blistered you must have blistered he must have blistered we must have blistered you must have blistered they must have blistered
Perfecto con V-ing
I must have been blistering you must have been blistering he must have been blistering we must have been blistering you must have been blistering they must have been blistering
Negación
Forma simple
I must not blister you must not blister he must not blister we must not blister you must not blister they must not blister
Forma con V-ing
I must not be blistering you must not be blistering he must not be blistering we must not be blistering you must not be blistering they must not be blistering
Perfecto
I must not have blistered you must not have blistered he must not have blistered we must not have blistered you must not have blistered they must not have blistered
Perfecto con V-ing
I must not have been blistering you must not have been blistering he must not have been blistering we must not have been blistering you must not have been blistering they must not have been blistering
Forma interrogativa
Forma simple
must I blister? must you blister? must he blister? must we blister? must you blister? must they blister?
Forma con V-ing
must I be blistering? must you be blistering? must he be blistering? must we be blistering? must you be blistering? must they be blistering?
Perfecto
must I have blistered? must you have blistered? must he have blistered? must we have blistered? must you have blistered? must they have blistered?
Perfecto con V-ing
must I have been blistering? must you have been blistering? must he have been blistering? must we have been blistering? must you have been blistering? must they have been blistering?
Forma interro-negativa
Forma simple
must I not blister? must you not blister? must he not blister? must we not blister? must you not blister? must they not blister?
Forma con V-ing
must I not be blistering? must you not be blistering? must he not be blistering? must we not be blistering? must you not be blistering? must they not be blistering?
Perfecto
must I not have blistered? must you not have blistered? must he not have blistered? must we not have blistered? must you not have blistered? must they not have blistered?
Perfecto con V-ing
must I not have been blistering? must you not have been blistering? must he not have been blistering? must we not have been blistering? must you not have been blistering? must they not have been blistering?