ought to preestablish
Regular verb: preestablish - preestablished- preestablished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to preestablish
you ought to preestablish
he ought to preestablish
we ought to preestablish
you ought to preestablish
they ought to preestablish 	I ought to be preestablishing
you ought to be preestablishing
he ought to be preestablishing
we ought to be preestablishing
you ought to be preestablishing
they ought to be preestablishing	I ought to have preestablished
you ought to have preestablished
he ought to have preestablished
we ought to have preestablished
you ought to have preestablished
they ought to have preestablished	I ought to have been preestablishing
you ought to have been preestablishing
he ought to have been preestablishing
we ought to have been preestablishing
you ought to have been preestablishing
they ought to have been preestablishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to preestablish
you oughtn't to preestablish
he oughtn't to preestablish
we oughtn't to preestablish
you oughtn't to preestablish
they oughtn't to preestablish 	I oughtn't to be preestablishing
you oughtn't to be preestablishing
he oughtn't to be preestablishing
we oughtn't to be preestablishing
you oughtn't to be preestablishing
they oughtn't to be preestablishing	I oughtn't to have preestablished
you oughtn't to have preestablished
he oughtn't to have preestablished
we oughtn't to have preestablished
you oughtn't to have preestablished
they oughtn't to have preestablished	I oughtn't to have been preestablishing
you oughtn't to have been preestablishing
he oughtn't to have been preestablishing
we oughtn't to have been preestablishing
you oughtn't to have been preestablishing
they oughtn't to have been preestablishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I preestablish?
ought to you preestablish?
ought to he preestablish?
ought to we preestablish?
ought to you preestablish?
ought to they preestablish? 	ought to I be preestablishing?
ought to you be preestablishing?
ought to he be preestablishing?
ought to we be preestablishing?
ought to you be preestablishing?
ought to they be preestablishing? 	ought to I have preestablished?
ought to you have preestablished?
ought to he have preestablished?
ought to we have preestablished?
ought to you have preestablished?
ought to they have preestablished? 	ought to I have been preestablishing?
ought to you have been preestablishing?
ought to he have been preestablishing?
ought to we have been preestablishing?
ought to you have been preestablishing?
ought to they have been preestablishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to preestablish?
oughtn't you to preestablish?
oughtn't he to preestablish?
oughtn't we to preestablish?
oughtn't you to preestablish?
oughtn't they to preestablish? 	oughtn't I to be preestablishing?
oughtn't you to be preestablishing?
oughtn't he to be preestablishing?
oughtn't we to be preestablishing?
oughtn't you to be preestablishing?
oughtn't they to be preestablishing? 	oughtn't I to have preestablished?
oughtn't you to have preestablished?
oughtn't he to have preestablished?
oughtn't we to have preestablished?
oughtn't you to have preestablished?
oughtn't they to have preestablished? 	oughtn't I to have been preestablishing?
oughtn't you to have been preestablishing?
oughtn't he to have been preestablishing?
oughtn't we to have been preestablishing?
oughtn't you to have been preestablishing?
oughtn't they to have been preestablishing?