I must think you must think she must think we must think you must think they must think
Forma con V-ing
I must be thinking you must be thinking she must be thinking we must be thinking you must be thinking they must be thinking
Perfecto
I must have thought you must have thought she must have thought we must have thought you must have thought they must have thought
Perfecto con V-ing
I must have been thinking you must have been thinking she must have been thinking we must have been thinking you must have been thinking they must have been thinking
Negación
Forma simple
I must not think you must not think she must not think we must not think you must not think they must not think
Forma con V-ing
I must not be thinking you must not be thinking she must not be thinking we must not be thinking you must not be thinking they must not be thinking
Perfecto
I must not have thought you must not have thought she must not have thought we must not have thought you must not have thought they must not have thought
Perfecto con V-ing
I must not have been thinking you must not have been thinking she must not have been thinking we must not have been thinking you must not have been thinking they must not have been thinking
Forma interrogativa
Forma simple
must I think? must you think? must she think? must we think? must you think? must they think?
Forma con V-ing
must I be thinking? must you be thinking? must she be thinking? must we be thinking? must you be thinking? must they be thinking?
Perfecto
must I have thought? must you have thought? must she have thought? must we have thought? must you have thought? must they have thought?
Perfecto con V-ing
must I have been thinking? must you have been thinking? must she have been thinking? must we have been thinking? must you have been thinking? must they have been thinking?
Forma interro-negativa
Forma simple
must I not think? must you not think? must she not think? must we not think? must you not think? must they not think?
Forma con V-ing
must I not be thinking? must you not be thinking? must she not be thinking? must we not be thinking? must you not be thinking? must they not be thinking?
Perfecto
must I not have thought? must you not have thought? must she not have thought? must we not have thought? must you not have thought? must they not have thought?
Perfecto con V-ing
must I not have been thinking? must you not have been thinking? must she not have been thinking? must we not have been thinking? must you not have been thinking? must they not have been thinking?