I must crinkle you must crinkle he must crinkle we must crinkle you must crinkle they must crinkle
Forma con V-ing
I must be crinkling you must be crinkling he must be crinkling we must be crinkling you must be crinkling they must be crinkling
Perfecto
I must have crinkled you must have crinkled he must have crinkled we must have crinkled you must have crinkled they must have crinkled
Perfecto con V-ing
I must have been crinkling you must have been crinkling he must have been crinkling we must have been crinkling you must have been crinkling they must have been crinkling
Negación
Forma simple
I must not crinkle you must not crinkle he must not crinkle we must not crinkle you must not crinkle they must not crinkle
Forma con V-ing
I must not be crinkling you must not be crinkling he must not be crinkling we must not be crinkling you must not be crinkling they must not be crinkling
Perfecto
I must not have crinkled you must not have crinkled he must not have crinkled we must not have crinkled you must not have crinkled they must not have crinkled
Perfecto con V-ing
I must not have been crinkling you must not have been crinkling he must not have been crinkling we must not have been crinkling you must not have been crinkling they must not have been crinkling
Forma interrogativa
Forma simple
must I crinkle? must you crinkle? must he crinkle? must we crinkle? must you crinkle? must they crinkle?
Forma con V-ing
must I be crinkling? must you be crinkling? must he be crinkling? must we be crinkling? must you be crinkling? must they be crinkling?
Perfecto
must I have crinkled? must you have crinkled? must he have crinkled? must we have crinkled? must you have crinkled? must they have crinkled?
Perfecto con V-ing
must I have been crinkling? must you have been crinkling? must he have been crinkling? must we have been crinkling? must you have been crinkling? must they have been crinkling?
Forma interro-negativa
Forma simple
must I not crinkle? must you not crinkle? must he not crinkle? must we not crinkle? must you not crinkle? must they not crinkle?
Forma con V-ing
must I not be crinkling? must you not be crinkling? must he not be crinkling? must we not be crinkling? must you not be crinkling? must they not be crinkling?
Perfecto
must I not have crinkled? must you not have crinkled? must he not have crinkled? must we not have crinkled? must you not have crinkled? must they not have crinkled?
Perfecto con V-ing
must I not have been crinkling? must you not have been crinkling? must he not have been crinkling? must we not have been crinkling? must you not have been crinkling? must they not have been crinkling?