should spearhead
Regular verb: spearhead - spearheaded- spearheaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should spearhead
you should spearhead
she should spearhead
we should spearhead
you should spearhead
they should spearhead 	I should be spearheading
you should be spearheading
she should be spearheading
we should be spearheading
you should be spearheading
they should be spearheading	I should have spearheaded
you should have spearheaded
she should have spearheaded
we should have spearheaded
you should have spearheaded
they should have spearheaded	I should have been spearheading
you should have been spearheading
she should have been spearheading
we should have been spearheading
you should have been spearheading
they should have been spearheading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not spearhead
you should not spearhead
she should not spearhead
we should not spearhead
you should not spearhead
they should not spearhead 	I should not be spearheading
you should not be spearheading
she should not be spearheading
we should not be spearheading
you should not be spearheading
they should not be spearheading	I should not have spearheaded
you should not have spearheaded
she should not have spearheaded
we should not have spearheaded
you should not have spearheaded
they should not have spearheaded	I should not have been spearheading
you should not have been spearheading
she should not have been spearheading
we should not have been spearheading
you should not have been spearheading
they should not have been spearheading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I spearhead?
should you spearhead?
should she spearhead?
should we spearhead?
should you spearhead?
should they spearhead? 	should I be spearheading?
should you be spearheading?
should she be spearheading?
should we be spearheading?
should you be spearheading?
should they be spearheading? 	should I have spearheaded?
should you have spearheaded?
should she have spearheaded?
should we have spearheaded?
should you have spearheaded?
should they have spearheaded? 	should I have been spearheading?
should you have been spearheading?
should she have been spearheading?
should we have been spearheading?
should you have been spearheading?
should they have been spearheading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not spearhead?
should you not spearhead?
should she not spearhead?
should we not spearhead?
should you not spearhead?
should they not spearhead? 	should I not be spearheading?
should you not be spearheading?
should she not be spearheading?
should we not be spearheading?
should you not be spearheading?
should they not be spearheading? 	should I not have spearheaded?
should you not have spearheaded?
should she not have spearheaded?
should we not have spearheaded?
should you not have spearheaded?
should they not have spearheaded? 	should I not have been spearheading?
should you not have been spearheading?
should she not have been spearheading?
should we not have been spearheading?
should you not have been spearheading?
should they not have been spearheading?