ought to crater
Regular verb: crater - cratered- cratered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to crater
you ought to crater
she ought to crater
we ought to crater
you ought to crater
they ought to crater 	I ought to be cratering
you ought to be cratering
she ought to be cratering
we ought to be cratering
you ought to be cratering
they ought to be cratering	I ought to have cratered
you ought to have cratered
she ought to have cratered
we ought to have cratered
you ought to have cratered
they ought to have cratered	I ought to have been cratering
you ought to have been cratering
she ought to have been cratering
we ought to have been cratering
you ought to have been cratering
they ought to have been cratering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to crater
you oughtn't to crater
she oughtn't to crater
we oughtn't to crater
you oughtn't to crater
they oughtn't to crater 	I oughtn't to be cratering
you oughtn't to be cratering
she oughtn't to be cratering
we oughtn't to be cratering
you oughtn't to be cratering
they oughtn't to be cratering	I oughtn't to have cratered
you oughtn't to have cratered
she oughtn't to have cratered
we oughtn't to have cratered
you oughtn't to have cratered
they oughtn't to have cratered	I oughtn't to have been cratering
you oughtn't to have been cratering
she oughtn't to have been cratering
we oughtn't to have been cratering
you oughtn't to have been cratering
they oughtn't to have been cratering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I crater?
ought to you crater?
ought to she crater?
ought to we crater?
ought to you crater?
ought to they crater? 	ought to I be cratering?
ought to you be cratering?
ought to she be cratering?
ought to we be cratering?
ought to you be cratering?
ought to they be cratering? 	ought to I have cratered?
ought to you have cratered?
ought to she have cratered?
ought to we have cratered?
ought to you have cratered?
ought to they have cratered? 	ought to I have been cratering?
ought to you have been cratering?
ought to she have been cratering?
ought to we have been cratering?
ought to you have been cratering?
ought to they have been cratering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to crater?
oughtn't you to crater?
oughtn't she to crater?
oughtn't we to crater?
oughtn't you to crater?
oughtn't they to crater? 	oughtn't I to be cratering?
oughtn't you to be cratering?
oughtn't she to be cratering?
oughtn't we to be cratering?
oughtn't you to be cratering?
oughtn't they to be cratering? 	oughtn't I to have cratered?
oughtn't you to have cratered?
oughtn't she to have cratered?
oughtn't we to have cratered?
oughtn't you to have cratered?
oughtn't they to have cratered? 	oughtn't I to have been cratering?
oughtn't you to have been cratering?
oughtn't she to have been cratering?
oughtn't we to have been cratering?
oughtn't you to have been cratering?
oughtn't they to have been cratering?