ought to preen
Regular verb: preen - preened- preened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to preen
you ought to preen
he ought to preen
we ought to preen
you ought to preen
they ought to preen 	I ought to be preening
you ought to be preening
he ought to be preening
we ought to be preening
you ought to be preening
they ought to be preening	I ought to have preened
you ought to have preened
he ought to have preened
we ought to have preened
you ought to have preened
they ought to have preened	I ought to have been preening
you ought to have been preening
he ought to have been preening
we ought to have been preening
you ought to have been preening
they ought to have been preening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to preen
you ought not to preen
he ought not to preen
we ought not to preen
you ought not to preen
they ought not to preen 	I ought not to preening
you ought not to preening
he ought not to preening
we ought not to preening
you ought not to preening
they ought not to preening	I ought not to have preened
you ought not to have preened
he ought not to have preened
we ought not to have preened
you ought not to have preened
they ought not to have preened	I ought not to have been preening
you ought not to have been preening
he ought not to have been preening
we ought not to have been preening
you ought not to have been preening
they ought not to have been preening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I preen?
ought to you preen?
ought to he preen?
ought to we preen?
ought to you preen?
ought to they preen? 	ought to I be preening?
ought to you be preening?
ought to he be preening?
ought to we be preening?
ought to you be preening?
ought to they be preening? 	ought to I have preened?
ought to you have preened?
ought to he have preened?
ought to we have preened?
ought to you have preened?
ought to they have preened? 	ought to I have been preening?
ought to you have been preening?
ought to he have been preening?
ought to we have been preening?
ought to you have been preening?
ought to they have been preening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to preen?
ought you not to preen?
ought he not to preen?
ought we not to preen?
ought you not to preen?
ought they not to preen? 	ought I not to be preening?
ought you not to be preening?
ought he not to be preening?
ought we not to be preening?
ought you not to be preening?
ought they not to be preening? 	ought I not to have preened?
ought you not to have preened?
ought he not to have preened?
ought we not to have preened?
ought you not to have preened?
ought they not to have preened? 	ought I not to have been preening?
ought you not to have been preening?
ought he not to have been preening?
ought we not to have been preening?
ought you not to have been preening?
ought they not to have been preening?