should ahead
Regular verb: ahead - aheaded- aheaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should ahead
you should ahead
he should ahead
we should ahead
you should ahead
they should ahead 	I should be aheading
you should be aheading
he should be aheading
we should be aheading
you should be aheading
they should be aheading	I should have aheaded
you should have aheaded
he should have aheaded
we should have aheaded
you should have aheaded
they should have aheaded	I should have been aheading
you should have been aheading
he should have been aheading
we should have been aheading
you should have been aheading
they should have been aheading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not ahead
you should not ahead
he should not ahead
we should not ahead
you should not ahead
they should not ahead 	I should not be aheading
you should not be aheading
he should not be aheading
we should not be aheading
you should not be aheading
they should not be aheading	I should not have aheaded
you should not have aheaded
he should not have aheaded
we should not have aheaded
you should not have aheaded
they should not have aheaded	I should not have been aheading
you should not have been aheading
he should not have been aheading
we should not have been aheading
you should not have been aheading
they should not have been aheading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I ahead?
should you ahead?
should he ahead?
should we ahead?
should you ahead?
should they ahead? 	should I be aheading?
should you be aheading?
should he be aheading?
should we be aheading?
should you be aheading?
should they be aheading? 	should I have aheaded?
should you have aheaded?
should he have aheaded?
should we have aheaded?
should you have aheaded?
should they have aheaded? 	should I have been aheading?
should you have been aheading?
should he have been aheading?
should we have been aheading?
should you have been aheading?
should they have been aheading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not ahead?
should you not ahead?
should he not ahead?
should we not ahead?
should you not ahead?
should they not ahead? 	should I not be aheading?
should you not be aheading?
should he not be aheading?
should we not be aheading?
should you not be aheading?
should they not be aheading? 	should I not have aheaded?
should you not have aheaded?
should he not have aheaded?
should we not have aheaded?
should you not have aheaded?
should they not have aheaded? 	should I not have been aheading?
should you not have been aheading?
should he not have been aheading?
should we not have been aheading?
should you not have been aheading?
should they not have been aheading?