ought to prealter
Regular verb: prealter - prealtered- prealtered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to prealter
you ought to prealter
he ought to prealter
we ought to prealter
you ought to prealter
they ought to prealter 	I ought to be prealtering
you ought to be prealtering
he ought to be prealtering
we ought to be prealtering
you ought to be prealtering
they ought to be prealtering	I ought to have prealtered
you ought to have prealtered
he ought to have prealtered
we ought to have prealtered
you ought to have prealtered
they ought to have prealtered	I ought to have been prealtering
you ought to have been prealtering
he ought to have been prealtering
we ought to have been prealtering
you ought to have been prealtering
they ought to have been prealtering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to prealter
you ought not to prealter
he ought not to prealter
we ought not to prealter
you ought not to prealter
they ought not to prealter 	I ought not to prealtering
you ought not to prealtering
he ought not to prealtering
we ought not to prealtering
you ought not to prealtering
they ought not to prealtering	I ought not to have prealtered
you ought not to have prealtered
he ought not to have prealtered
we ought not to have prealtered
you ought not to have prealtered
they ought not to have prealtered	I ought not to have been prealtering
you ought not to have been prealtering
he ought not to have been prealtering
we ought not to have been prealtering
you ought not to have been prealtering
they ought not to have been prealtering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I prealter?
ought to you prealter?
ought to he prealter?
ought to we prealter?
ought to you prealter?
ought to they prealter? 	ought to I be prealtering?
ought to you be prealtering?
ought to he be prealtering?
ought to we be prealtering?
ought to you be prealtering?
ought to they be prealtering? 	ought to I have prealtered?
ought to you have prealtered?
ought to he have prealtered?
ought to we have prealtered?
ought to you have prealtered?
ought to they have prealtered? 	ought to I have been prealtering?
ought to you have been prealtering?
ought to he have been prealtering?
ought to we have been prealtering?
ought to you have been prealtering?
ought to they have been prealtering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to prealter?
ought you not to prealter?
ought he not to prealter?
ought we not to prealter?
ought you not to prealter?
ought they not to prealter? 	ought I not to be prealtering?
ought you not to be prealtering?
ought he not to be prealtering?
ought we not to be prealtering?
ought you not to be prealtering?
ought they not to be prealtering? 	ought I not to have prealtered?
ought you not to have prealtered?
ought he not to have prealtered?
ought we not to have prealtered?
ought you not to have prealtered?
ought they not to have prealtered? 	ought I not to have been prealtering?
ought you not to have been prealtering?
ought he not to have been prealtering?
ought we not to have been prealtering?
ought you not to have been prealtering?
ought they not to have been prealtering?