I must swallow you must swallow she must swallow we must swallow you must swallow they must swallow
Forma con V-ing
I must be swallowing you must be swallowing she must be swallowing we must be swallowing you must be swallowing they must be swallowing
Perfecto
I must have swallowed you must have swallowed she must have swallowed we must have swallowed you must have swallowed they must have swallowed
Perfecto con V-ing
I must have been swallowing you must have been swallowing she must have been swallowing we must have been swallowing you must have been swallowing they must have been swallowing
Negación
Forma simple
I must not swallow you must not swallow she must not swallow we must not swallow you must not swallow they must not swallow
Forma con V-ing
I must not be swallowing you must not be swallowing she must not be swallowing we must not be swallowing you must not be swallowing they must not be swallowing
Perfecto
I must not have swallowed you must not have swallowed she must not have swallowed we must not have swallowed you must not have swallowed they must not have swallowed
Perfecto con V-ing
I must not have been swallowing you must not have been swallowing she must not have been swallowing we must not have been swallowing you must not have been swallowing they must not have been swallowing
Forma interrogativa
Forma simple
must I swallow? must you swallow? must she swallow? must we swallow? must you swallow? must they swallow?
Forma con V-ing
must I be swallowing? must you be swallowing? must she be swallowing? must we be swallowing? must you be swallowing? must they be swallowing?
Perfecto
must I have swallowed? must you have swallowed? must she have swallowed? must we have swallowed? must you have swallowed? must they have swallowed?
Perfecto con V-ing
must I have been swallowing? must you have been swallowing? must she have been swallowing? must we have been swallowing? must you have been swallowing? must they have been swallowing?
Forma interro-negativa
Forma simple
must I not swallow? must you not swallow? must she not swallow? must we not swallow? must you not swallow? must they not swallow?
Forma con V-ing
must I not be swallowing? must you not be swallowing? must she not be swallowing? must we not be swallowing? must you not be swallowing? must they not be swallowing?
Perfecto
must I not have swallowed? must you not have swallowed? must she not have swallowed? must we not have swallowed? must you not have swallowed? must they not have swallowed?
Perfecto con V-ing
must I not have been swallowing? must you not have been swallowing? must she not have been swallowing? must we not have been swallowing? must you not have been swallowing? must they not have been swallowing?