ought to birch
Regular verb: birch - birched- birched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to birch
you ought to birch
he ought to birch
we ought to birch
you ought to birch
they ought to birch 	I ought to be birching
you ought to be birching
he ought to be birching
we ought to be birching
you ought to be birching
they ought to be birching	I ought to have birched
you ought to have birched
he ought to have birched
we ought to have birched
you ought to have birched
they ought to have birched	I ought to have been birching
you ought to have been birching
he ought to have been birching
we ought to have been birching
you ought to have been birching
they ought to have been birching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to birch
you ought not to birch
he ought not to birch
we ought not to birch
you ought not to birch
they ought not to birch 	I ought not to birching
you ought not to birching
he ought not to birching
we ought not to birching
you ought not to birching
they ought not to birching	I ought not to have birched
you ought not to have birched
he ought not to have birched
we ought not to have birched
you ought not to have birched
they ought not to have birched	I ought not to have been birching
you ought not to have been birching
he ought not to have been birching
we ought not to have been birching
you ought not to have been birching
they ought not to have been birching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I birch?
ought to you birch?
ought to he birch?
ought to we birch?
ought to you birch?
ought to they birch? 	ought to I be birching?
ought to you be birching?
ought to he be birching?
ought to we be birching?
ought to you be birching?
ought to they be birching? 	ought to I have birched?
ought to you have birched?
ought to he have birched?
ought to we have birched?
ought to you have birched?
ought to they have birched? 	ought to I have been birching?
ought to you have been birching?
ought to he have been birching?
ought to we have been birching?
ought to you have been birching?
ought to they have been birching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to birch?
ought you not to birch?
ought he not to birch?
ought we not to birch?
ought you not to birch?
ought they not to birch? 	ought I not to be birching?
ought you not to be birching?
ought he not to be birching?
ought we not to be birching?
ought you not to be birching?
ought they not to be birching? 	ought I not to have birched?
ought you not to have birched?
ought he not to have birched?
ought we not to have birched?
ought you not to have birched?
ought they not to have birched? 	ought I not to have been birching?
ought you not to have been birching?
ought he not to have been birching?
ought we not to have been birching?
ought you not to have been birching?
ought they not to have been birching?