can intergrade
Regular verb: intergrade - intergraded- intergraded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can intergrade
you can intergrade
she can intergrade
we can intergrade
you can intergrade
they can intergrade 	I can be intergrading
you can be intergrading
she can be intergrading
we can be intergrading
you can be intergrading
they can be intergrading	I can have intergraded
you can have intergraded
she can have intergraded
we can have intergraded
you can have intergraded
they can have intergraded	I can have been intergrading
you can have been intergrading
she can have been intergrading
we can have been intergrading
you can have been intergrading
they can have been intergrading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot intergrade
you cannot intergrade
she cannot intergrade
we cannot intergrade
you cannot intergrade
they cannot intergrade 	I cannot be intergrading
you cannot be intergrading
she cannot be intergrading
we cannot be intergrading
you cannot be intergrading
they cannot be intergrading	I cannot have intergraded
you cannot have intergraded
she cannot have intergraded
we cannot have intergraded
you cannot have intergraded
they cannot have intergraded	I cannot have been intergrading
you cannot have been intergrading
she cannot have been intergrading
we cannot have been intergrading
you cannot have been intergrading
they cannot have been intergrading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I intergrade?
can you intergrade?
can she intergrade?
can we intergrade?
can you intergrade?
can they intergrade? 	can I be intergrading?
can you be intergrading?
can she be intergrading?
can we be intergrading?
can you be intergrading?
can they be intergrading? 	can I have intergraded?
can you have intergraded?
can she have intergraded?
can we have intergraded?
can you have intergraded?
can they have intergraded? 	can I have been intergrading?
can you have been intergrading?
can she have been intergrading?
can we have been intergrading?
can you have been intergrading?
can they have been intergrading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not intergrade?
can you not intergrade?
can she not intergrade?
can we not intergrade?
can you not intergrade?
can they not intergrade? 	can I not be intergrading?
can you not be intergrading?
can she not be intergrading?
can we not be intergrading?
can you not be intergrading?
can they not be intergrading? 	can I not have intergraded?
can you not have intergraded?
can she not have intergraded?
can we not have intergraded?
can you not have intergraded?
can they not have intergraded? 	can I not have been intergrading?
can you not have been intergrading?
can she not have been intergrading?
can we not have been intergrading?
can you not have been intergrading?
can they not have been intergrading?