can aggrade
Regular verb: aggrade - aggraded- aggraded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can aggrade
you can aggrade
she can aggrade
we can aggrade
you can aggrade
they can aggrade 	I can be aggrading
you can be aggrading
she can be aggrading
we can be aggrading
you can be aggrading
they can be aggrading	I can have aggraded
you can have aggraded
she can have aggraded
we can have aggraded
you can have aggraded
they can have aggraded	I can have been aggrading
you can have been aggrading
she can have been aggrading
we can have been aggrading
you can have been aggrading
they can have been aggrading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't aggrade
you can't aggrade
she can't aggrade
we can't aggrade
you can't aggrade
they can't aggrade 	I can't be aggrading
you can't be aggrading
she can't be aggrading
we can't be aggrading
you can't be aggrading
they can't be aggrading	I can't have aggraded
you can't have aggraded
she can't have aggraded
we can't have aggraded
you can't have aggraded
they can't have aggraded	I can't have been aggrading
you can't have been aggrading
she can't have been aggrading
we can't have been aggrading
you can't have been aggrading
they can't have been aggrading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I aggrade?
can you aggrade?
can she aggrade?
can we aggrade?
can you aggrade?
can they aggrade? 	can I be aggrading?
can you be aggrading?
can she be aggrading?
can we be aggrading?
can you be aggrading?
can they be aggrading? 	can I have aggraded?
can you have aggraded?
can she have aggraded?
can we have aggraded?
can you have aggraded?
can they have aggraded? 	can I have been aggrading?
can you have been aggrading?
can she have been aggrading?
can we have been aggrading?
can you have been aggrading?
can they have been aggrading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I aggrade?
can't you aggrade?
can't she aggrade?
can't we aggrade?
can't you aggrade?
can't they aggrade? 	can't I be aggrading?
can't you be aggrading?
can't she be aggrading?
can't we be aggrading?
can't you be aggrading?
can't they be aggrading? 	can't I have aggraded?
can't you have aggraded?
can't she have aggraded?
can't we have aggraded?
can't you have aggraded?
can't they have aggraded? 	can't I have been aggrading?
can't you have been aggrading?
can't she have been aggrading?
can't we have been aggrading?
can't you have been aggrading?
can't they have been aggrading?