could neaten
Regular verb: neaten - neatened- neatened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could neaten
you could neaten
he could neaten
we could neaten
you could neaten
they could neaten 	I could be neatening
you could be neatening
he could be neatening
we could be neatening
you could be neatening
they could be neatening	I could have neatened
you could have neatened
he could have neatened
we could have neatened
you could have neatened
they could have neatened	I could have been neatening
you could have been neatening
he could have been neatening
we could have been neatening
you could have been neatening
they could have been neatening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't neaten
you couldn't neaten
he couldn't neaten
we couldn't neaten
you couldn't neaten
they couldn't neaten 	I couldn't be neatening
you couldn't be neatening
he couldn't be neatening
we couldn't be neatening
you couldn't be neatening
they couldn't be neatening	I couldn't have neatened
you couldn't have neatened
he couldn't have neatened
we couldn't have neatened
you couldn't have neatened
they couldn't have neatened	I couldn't have been neatening
you couldn't have been neatening
he couldn't have been neatening
we couldn't have been neatening
you couldn't have been neatening
they couldn't have been neatening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I neaten?
could you neaten?
could he neaten?
could we neaten?
could you neaten?
could they neaten? 	could I be neatening?
could you be neatening?
could he be neatening?
could we be neatening?
could you be neatening?
could they be neatening? 	could I have neatened?
could you have neatened?
could he have neatened?
could we have neatened?
could you have neatened?
could they have neatened? 	could I have been neatening?
could you have been neatening?
could he have been neatening?
could we have been neatening?
could you have been neatening?
could they have been neatening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I neaten?
couldn't you neaten?
couldn't he neaten?
couldn't we neaten?
couldn't you neaten?
couldn't they neaten? 	couldn't I be neatening?
couldn't you be neatening?
couldn't he be neatening?
couldn't we be neatening?
couldn't you be neatening?
couldn't they be neatening? 	couldn't I have neatened?
couldn't you have neatened?
couldn't he have neatened?
couldn't we have neatened?
couldn't you have neatened?
couldn't they have neatened? 	couldn't I have been neatening?
couldn't you have been neatening?
couldn't he have been neatening?
couldn't we have been neatening?
couldn't you have been neatening?
couldn't they have been neatening?