could robe
Regular verb: robe - robed- robed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could robe
you could robe
she could robe
we could robe
you could robe
they could robe 	I could be robing
you could be robing
she could be robing
we could be robing
you could be robing
they could be robing	I could have robed
you could have robed
she could have robed
we could have robed
you could have robed
they could have robed	I could have been robing
you could have been robing
she could have been robing
we could have been robing
you could have been robing
they could have been robing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't robe
you couldn't robe
she couldn't robe
we couldn't robe
you couldn't robe
they couldn't robe 	I couldn't be robing
you couldn't be robing
she couldn't be robing
we couldn't be robing
you couldn't be robing
they couldn't be robing	I couldn't have robed
you couldn't have robed
she couldn't have robed
we couldn't have robed
you couldn't have robed
they couldn't have robed	I couldn't have been robing
you couldn't have been robing
she couldn't have been robing
we couldn't have been robing
you couldn't have been robing
they couldn't have been robing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I robe?
could you robe?
could she robe?
could we robe?
could you robe?
could they robe? 	could I be robing?
could you be robing?
could she be robing?
could we be robing?
could you be robing?
could they be robing? 	could I have robed?
could you have robed?
could she have robed?
could we have robed?
could you have robed?
could they have robed? 	could I have been robing?
could you have been robing?
could she have been robing?
could we have been robing?
could you have been robing?
could they have been robing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I robe?
couldn't you robe?
couldn't she robe?
couldn't we robe?
couldn't you robe?
couldn't they robe? 	couldn't I be robing?
couldn't you be robing?
couldn't she be robing?
couldn't we be robing?
couldn't you be robing?
couldn't they be robing? 	couldn't I have robed?
couldn't you have robed?
couldn't she have robed?
couldn't we have robed?
couldn't you have robed?
couldn't they have robed? 	couldn't I have been robing?
couldn't you have been robing?
couldn't she have been robing?
couldn't we have been robing?
couldn't you have been robing?
couldn't they have been robing?