I must windmill you must windmill he must windmill we must windmill you must windmill they must windmill
Forma con V-ing
I must be windmilling you must be windmilling he must be windmilling we must be windmilling you must be windmilling they must be windmilling
Perfecto
I must have windmilled you must have windmilled he must have windmilled we must have windmilled you must have windmilled they must have windmilled
Perfecto con V-ing
I must have been windmilling you must have been windmilling he must have been windmilling we must have been windmilling you must have been windmilling they must have been windmilling
Negación
Forma simple
I must not windmill you must not windmill he must not windmill we must not windmill you must not windmill they must not windmill
Forma con V-ing
I must not be windmilling you must not be windmilling he must not be windmilling we must not be windmilling you must not be windmilling they must not be windmilling
Perfecto
I must not have windmilled you must not have windmilled he must not have windmilled we must not have windmilled you must not have windmilled they must not have windmilled
Perfecto con V-ing
I must not have been windmilling you must not have been windmilling he must not have been windmilling we must not have been windmilling you must not have been windmilling they must not have been windmilling
Forma interrogativa
Forma simple
must I windmill? must you windmill? must he windmill? must we windmill? must you windmill? must they windmill?
Forma con V-ing
must I be windmilling? must you be windmilling? must he be windmilling? must we be windmilling? must you be windmilling? must they be windmilling?
Perfecto
must I have windmilled? must you have windmilled? must he have windmilled? must we have windmilled? must you have windmilled? must they have windmilled?
Perfecto con V-ing
must I have been windmilling? must you have been windmilling? must he have been windmilling? must we have been windmilling? must you have been windmilling? must they have been windmilling?
Forma interro-negativa
Forma simple
must I not windmill? must you not windmill? must he not windmill? must we not windmill? must you not windmill? must they not windmill?
Forma con V-ing
must I not be windmilling? must you not be windmilling? must he not be windmilling? must we not be windmilling? must you not be windmilling? must they not be windmilling?
Perfecto
must I not have windmilled? must you not have windmilled? must he not have windmilled? must we not have windmilled? must you not have windmilled? must they not have windmilled?
Perfecto con V-ing
must I not have been windmilling? must you not have been windmilling? must he not have been windmilling? must we not have been windmilling? must you not have been windmilling? must they not have been windmilling?