Conjugación del verbo inglés
MUST CRACK

Verbo regular: crack - cracked - cracked

Afirmación

Forma simple	Forma con V-ing
I must crack you must crack he must crack we must crack you must crack they must crack	I must be cracking you must be cracking he must be cracking we must be cracking you must be cracking they must be cracking
Perfecto	Perfecto con V-ing
I must have cracked you must have cracked he must have cracked we must have cracked you must have cracked they must have cracked	I must have been cracking you must have been cracking he must have been cracking we must have been cracking you must have been cracking they must have been cracking

Negación

Forma simple	Forma con V-ing
I must not crack you must not crack he must not crack we must not crack you must not crack they must not crack	I must not be cracking you must not be cracking he must not be cracking we must not be cracking you must not be cracking they must not be cracking
Perfecto	Perfecto con V-ing
I must not have cracked you must not have cracked he must not have cracked we must not have cracked you must not have cracked they must not have cracked	I must not have been cracking you must not have been cracking he must not have been cracking we must not have been cracking you must not have been cracking they must not have been cracking

Forma interrogativa

Forma simple	Forma con V-ing
must I crack? must you crack? must he crack? must we crack? must you crack? must they crack?	must I be cracking? must you be cracking? must he be cracking? must we be cracking? must you be cracking? must they be cracking?
Perfecto	Perfecto con V-ing
must I have cracked? must you have cracked? must he have cracked? must we have cracked? must you have cracked? must they have cracked?	must I have been cracking? must you have been cracking? must he have been cracking? must we have been cracking? must you have been cracking? must they have been cracking?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not crack? must you not crack? must he not crack? must we not crack? must you not crack? must they not crack?	must I not be cracking? must you not be cracking? must he not be cracking? must we not be cracking? must you not be cracking? must they not be cracking?
Perfecto	Perfecto con V-ing
must I not have cracked? must you not have cracked? must he not have cracked? must we not have cracked? must you not have cracked? must they not have cracked?	must I not have been cracking? must you not have been cracking? must he not have been cracking? must we not have been cracking? must you not have been cracking? must they not have been cracking?