could rut
Regular verb: rut - rutted- rutted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could rut
you could rut
he could rut
we could rut
you could rut
they could rut 	I could be rutting
you could be rutting
he could be rutting
we could be rutting
you could be rutting
they could be rutting	I could have rutted
you could have rutted
he could have rutted
we could have rutted
you could have rutted
they could have rutted	I could have been rutting
you could have been rutting
he could have been rutting
we could have been rutting
you could have been rutting
they could have been rutting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't rut
you couldn't rut
he couldn't rut
we couldn't rut
you couldn't rut
they couldn't rut 	I couldn't be rutting
you couldn't be rutting
he couldn't be rutting
we couldn't be rutting
you couldn't be rutting
they couldn't be rutting	I couldn't have rutted
you couldn't have rutted
he couldn't have rutted
we couldn't have rutted
you couldn't have rutted
they couldn't have rutted	I couldn't have been rutting
you couldn't have been rutting
he couldn't have been rutting
we couldn't have been rutting
you couldn't have been rutting
they couldn't have been rutting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I rut?
could you rut?
could he rut?
could we rut?
could you rut?
could they rut? 	could I be rutting?
could you be rutting?
could he be rutting?
could we be rutting?
could you be rutting?
could they be rutting? 	could I have rutted?
could you have rutted?
could he have rutted?
could we have rutted?
could you have rutted?
could they have rutted? 	could I have been rutting?
could you have been rutting?
could he have been rutting?
could we have been rutting?
could you have been rutting?
could they have been rutting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I rut?
couldn't you rut?
couldn't he rut?
couldn't we rut?
couldn't you rut?
couldn't they rut? 	couldn't I be rutting?
couldn't you be rutting?
couldn't he be rutting?
couldn't we be rutting?
couldn't you be rutting?
couldn't they be rutting? 	couldn't I have rutted?
couldn't you have rutted?
couldn't he have rutted?
couldn't we have rutted?
couldn't you have rutted?
couldn't they have rutted? 	couldn't I have been rutting?
couldn't you have been rutting?
couldn't he have been rutting?
couldn't we have been rutting?
couldn't you have been rutting?
couldn't they have been rutting?