could persuade
Regular verb: persuade - persuaded- persuaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could persuade
you could persuade
he could persuade
we could persuade
you could persuade
they could persuade 	I could be persuading
you could be persuading
he could be persuading
we could be persuading
you could be persuading
they could be persuading	I could have persuaded
you could have persuaded
he could have persuaded
we could have persuaded
you could have persuaded
they could have persuaded	I could have been persuading
you could have been persuading
he could have been persuading
we could have been persuading
you could have been persuading
they could have been persuading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't persuade
you couldn't persuade
he couldn't persuade
we couldn't persuade
you couldn't persuade
they couldn't persuade 	I couldn't be persuading
you couldn't be persuading
he couldn't be persuading
we couldn't be persuading
you couldn't be persuading
they couldn't be persuading	I couldn't have persuaded
you couldn't have persuaded
he couldn't have persuaded
we couldn't have persuaded
you couldn't have persuaded
they couldn't have persuaded	I couldn't have been persuading
you couldn't have been persuading
he couldn't have been persuading
we couldn't have been persuading
you couldn't have been persuading
they couldn't have been persuading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I persuade?
could you persuade?
could he persuade?
could we persuade?
could you persuade?
could they persuade? 	could I be persuading?
could you be persuading?
could he be persuading?
could we be persuading?
could you be persuading?
could they be persuading? 	could I have persuaded?
could you have persuaded?
could he have persuaded?
could we have persuaded?
could you have persuaded?
could they have persuaded? 	could I have been persuading?
could you have been persuading?
could he have been persuading?
could we have been persuading?
could you have been persuading?
could they have been persuading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I persuade?
couldn't you persuade?
couldn't he persuade?
couldn't we persuade?
couldn't you persuade?
couldn't they persuade? 	couldn't I be persuading?
couldn't you be persuading?
couldn't he be persuading?
couldn't we be persuading?
couldn't you be persuading?
couldn't they be persuading? 	couldn't I have persuaded?
couldn't you have persuaded?
couldn't he have persuaded?
couldn't we have persuaded?
couldn't you have persuaded?
couldn't they have persuaded? 	couldn't I have been persuading?
couldn't you have been persuading?
couldn't he have been persuading?
couldn't we have been persuading?
couldn't you have been persuading?
couldn't they have been persuading?