ought to erode
Regular verb: erode - eroded- eroded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to erode
you ought to erode
she ought to erode
we ought to erode
you ought to erode
they ought to erode 	I ought to be eroding
you ought to be eroding
she ought to be eroding
we ought to be eroding
you ought to be eroding
they ought to be eroding	I ought to have eroded
you ought to have eroded
she ought to have eroded
we ought to have eroded
you ought to have eroded
they ought to have eroded	I ought to have been eroding
you ought to have been eroding
she ought to have been eroding
we ought to have been eroding
you ought to have been eroding
they ought to have been eroding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to erode
you oughtn't to erode
she oughtn't to erode
we oughtn't to erode
you oughtn't to erode
they oughtn't to erode 	I oughtn't to be eroding
you oughtn't to be eroding
she oughtn't to be eroding
we oughtn't to be eroding
you oughtn't to be eroding
they oughtn't to be eroding	I oughtn't to have eroded
you oughtn't to have eroded
she oughtn't to have eroded
we oughtn't to have eroded
you oughtn't to have eroded
they oughtn't to have eroded	I oughtn't to have been eroding
you oughtn't to have been eroding
she oughtn't to have been eroding
we oughtn't to have been eroding
you oughtn't to have been eroding
they oughtn't to have been eroding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I erode?
ought to you erode?
ought to she erode?
ought to we erode?
ought to you erode?
ought to they erode? 	ought to I be eroding?
ought to you be eroding?
ought to she be eroding?
ought to we be eroding?
ought to you be eroding?
ought to they be eroding? 	ought to I have eroded?
ought to you have eroded?
ought to she have eroded?
ought to we have eroded?
ought to you have eroded?
ought to they have eroded? 	ought to I have been eroding?
ought to you have been eroding?
ought to she have been eroding?
ought to we have been eroding?
ought to you have been eroding?
ought to they have been eroding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to erode?
oughtn't you to erode?
oughtn't she to erode?
oughtn't we to erode?
oughtn't you to erode?
oughtn't they to erode? 	oughtn't I to be eroding?
oughtn't you to be eroding?
oughtn't she to be eroding?
oughtn't we to be eroding?
oughtn't you to be eroding?
oughtn't they to be eroding? 	oughtn't I to have eroded?
oughtn't you to have eroded?
oughtn't she to have eroded?
oughtn't we to have eroded?
oughtn't you to have eroded?
oughtn't they to have eroded? 	oughtn't I to have been eroding?
oughtn't you to have been eroding?
oughtn't she to have been eroding?
oughtn't we to have been eroding?
oughtn't you to have been eroding?
oughtn't they to have been eroding?