can fatten
Regular verb: fatten - fattened- fattened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can fatten
you can fatten
he can fatten
we can fatten
you can fatten
they can fatten 	I can be fattening
you can be fattening
he can be fattening
we can be fattening
you can be fattening
they can be fattening	I can have fattened
you can have fattened
he can have fattened
we can have fattened
you can have fattened
they can have fattened	I can have been fattening
you can have been fattening
he can have been fattening
we can have been fattening
you can have been fattening
they can have been fattening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't fatten
you can't fatten
he can't fatten
we can't fatten
you can't fatten
they can't fatten 	I can't be fattening
you can't be fattening
he can't be fattening
we can't be fattening
you can't be fattening
they can't be fattening	I can't have fattened
you can't have fattened
he can't have fattened
we can't have fattened
you can't have fattened
they can't have fattened	I can't have been fattening
you can't have been fattening
he can't have been fattening
we can't have been fattening
you can't have been fattening
they can't have been fattening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I fatten?
can you fatten?
can he fatten?
can we fatten?
can you fatten?
can they fatten? 	can I be fattening?
can you be fattening?
can he be fattening?
can we be fattening?
can you be fattening?
can they be fattening? 	can I have fattened?
can you have fattened?
can he have fattened?
can we have fattened?
can you have fattened?
can they have fattened? 	can I have been fattening?
can you have been fattening?
can he have been fattening?
can we have been fattening?
can you have been fattening?
can they have been fattening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I fatten?
can't you fatten?
can't he fatten?
can't we fatten?
can't you fatten?
can't they fatten? 	can't I be fattening?
can't you be fattening?
can't he be fattening?
can't we be fattening?
can't you be fattening?
can't they be fattening? 	can't I have fattened?
can't you have fattened?
can't he have fattened?
can't we have fattened?
can't you have fattened?
can't they have fattened? 	can't I have been fattening?
can't you have been fattening?
can't he have been fattening?
can't we have been fattening?
can't you have been fattening?
can't they have been fattening?