Conjugación del verbo inglés
MUST SPEARHEAD

Verbo regular: spearhead - spearheaded - spearheaded

Afirmación

Forma simple	Forma con V-ing
I must spearhead you must spearhead he must spearhead we must spearhead you must spearhead they must spearhead	I must be spearheading you must be spearheading he must be spearheading we must be spearheading you must be spearheading they must be spearheading
Perfecto	Perfecto con V-ing
I must have spearheaded you must have spearheaded he must have spearheaded we must have spearheaded you must have spearheaded they must have spearheaded	I must have been spearheading you must have been spearheading he must have been spearheading we must have been spearheading you must have been spearheading they must have been spearheading

Negación

Forma simple	Forma con V-ing
I must not spearhead you must not spearhead he must not spearhead we must not spearhead you must not spearhead they must not spearhead	I must not be spearheading you must not be spearheading he must not be spearheading we must not be spearheading you must not be spearheading they must not be spearheading
Perfecto	Perfecto con V-ing
I must not have spearheaded you must not have spearheaded he must not have spearheaded we must not have spearheaded you must not have spearheaded they must not have spearheaded	I must not have been spearheading you must not have been spearheading he must not have been spearheading we must not have been spearheading you must not have been spearheading they must not have been spearheading

Forma interrogativa

Forma simple	Forma con V-ing
must I spearhead? must you spearhead? must he spearhead? must we spearhead? must you spearhead? must they spearhead?	must I be spearheading? must you be spearheading? must he be spearheading? must we be spearheading? must you be spearheading? must they be spearheading?
Perfecto	Perfecto con V-ing
must I have spearheaded? must you have spearheaded? must he have spearheaded? must we have spearheaded? must you have spearheaded? must they have spearheaded?	must I have been spearheading? must you have been spearheading? must he have been spearheading? must we have been spearheading? must you have been spearheading? must they have been spearheading?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not spearhead? must you not spearhead? must he not spearhead? must we not spearhead? must you not spearhead? must they not spearhead?	must I not be spearheading? must you not be spearheading? must he not be spearheading? must we not be spearheading? must you not be spearheading? must they not be spearheading?
Perfecto	Perfecto con V-ing
must I not have spearheaded? must you not have spearheaded? must he not have spearheaded? must we not have spearheaded? must you not have spearheaded? must they not have spearheaded?	must I not have been spearheading? must you not have been spearheading? must he not have been spearheading? must we not have been spearheading? must you not have been spearheading? must they not have been spearheading?