ought to overturn
Regular verb: overturn - overturned- overturned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to overturn
you ought to overturn
he ought to overturn
we ought to overturn
you ought to overturn
they ought to overturn 	I ought to be overturning
you ought to be overturning
he ought to be overturning
we ought to be overturning
you ought to be overturning
they ought to be overturning	I ought to have overturned
you ought to have overturned
he ought to have overturned
we ought to have overturned
you ought to have overturned
they ought to have overturned	I ought to have been overturning
you ought to have been overturning
he ought to have been overturning
we ought to have been overturning
you ought to have been overturning
they ought to have been overturning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to overturn
you ought not to overturn
he ought not to overturn
we ought not to overturn
you ought not to overturn
they ought not to overturn 	I ought not to overturning
you ought not to overturning
he ought not to overturning
we ought not to overturning
you ought not to overturning
they ought not to overturning	I ought not to have overturned
you ought not to have overturned
he ought not to have overturned
we ought not to have overturned
you ought not to have overturned
they ought not to have overturned	I ought not to have been overturning
you ought not to have been overturning
he ought not to have been overturning
we ought not to have been overturning
you ought not to have been overturning
they ought not to have been overturning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I overturn?
ought to you overturn?
ought to he overturn?
ought to we overturn?
ought to you overturn?
ought to they overturn? 	ought to I be overturning?
ought to you be overturning?
ought to he be overturning?
ought to we be overturning?
ought to you be overturning?
ought to they be overturning? 	ought to I have overturned?
ought to you have overturned?
ought to he have overturned?
ought to we have overturned?
ought to you have overturned?
ought to they have overturned? 	ought to I have been overturning?
ought to you have been overturning?
ought to he have been overturning?
ought to we have been overturning?
ought to you have been overturning?
ought to they have been overturning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to overturn?
ought you not to overturn?
ought he not to overturn?
ought we not to overturn?
ought you not to overturn?
ought they not to overturn? 	ought I not to be overturning?
ought you not to be overturning?
ought he not to be overturning?
ought we not to be overturning?
ought you not to be overturning?
ought they not to be overturning? 	ought I not to have overturned?
ought you not to have overturned?
ought he not to have overturned?
ought we not to have overturned?
ought you not to have overturned?
ought they not to have overturned? 	ought I not to have been overturning?
ought you not to have been overturning?
ought he not to have been overturning?
ought we not to have been overturning?
ought you not to have been overturning?
ought they not to have been overturning?