ought to case
Regular verb: case - cased- cased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to case
you ought to case
she ought to case
we ought to case
you ought to case
they ought to case 	I ought to be casing
you ought to be casing
she ought to be casing
we ought to be casing
you ought to be casing
they ought to be casing	I ought to have cased
you ought to have cased
she ought to have cased
we ought to have cased
you ought to have cased
they ought to have cased	I ought to have been casing
you ought to have been casing
she ought to have been casing
we ought to have been casing
you ought to have been casing
they ought to have been casing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to case
you ought not to case
she ought not to case
we ought not to case
you ought not to case
they ought not to case 	I ought not to casing
you ought not to casing
she ought not to casing
we ought not to casing
you ought not to casing
they ought not to casing	I ought not to have cased
you ought not to have cased
she ought not to have cased
we ought not to have cased
you ought not to have cased
they ought not to have cased	I ought not to have been casing
you ought not to have been casing
she ought not to have been casing
we ought not to have been casing
you ought not to have been casing
they ought not to have been casing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I case?
ought to you case?
ought to she case?
ought to we case?
ought to you case?
ought to they case? 	ought to I be casing?
ought to you be casing?
ought to she be casing?
ought to we be casing?
ought to you be casing?
ought to they be casing? 	ought to I have cased?
ought to you have cased?
ought to she have cased?
ought to we have cased?
ought to you have cased?
ought to they have cased? 	ought to I have been casing?
ought to you have been casing?
ought to she have been casing?
ought to we have been casing?
ought to you have been casing?
ought to they have been casing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to case?
ought you not to case?
ought she not to case?
ought we not to case?
ought you not to case?
ought they not to case? 	ought I not to be casing?
ought you not to be casing?
ought she not to be casing?
ought we not to be casing?
ought you not to be casing?
ought they not to be casing? 	ought I not to have cased?
ought you not to have cased?
ought she not to have cased?
ought we not to have cased?
ought you not to have cased?
ought they not to have cased? 	ought I not to have been casing?
ought you not to have been casing?
ought she not to have been casing?
ought we not to have been casing?
ought you not to have been casing?
ought they not to have been casing?