ought to preinstruct
Verbe régulier : preinstruct - preinstructed- preinstructed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to preinstruct
you ought to preinstruct
she ought to preinstruct
we ought to preinstruct
you ought to preinstruct
they ought to preinstruct 	I ought to be preinstructing
you ought to be preinstructing
she ought to be preinstructing
we ought to be preinstructing
you ought to be preinstructing
they ought to be preinstructing	I ought to have preinstructed
you ought to have preinstructed
she ought to have preinstructed
we ought to have preinstructed
you ought to have preinstructed
they ought to have preinstructed	I ought to have been preinstructing
you ought to have been preinstructing
she ought to have been preinstructing
we ought to have been preinstructing
you ought to have been preinstructing
they ought to have been preinstructing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I oughtn't to preinstruct
you oughtn't to preinstruct
she oughtn't to preinstruct
we oughtn't to preinstruct
you oughtn't to preinstruct
they oughtn't to preinstruct 	I oughtn't to be preinstructing
you oughtn't to be preinstructing
she oughtn't to be preinstructing
we oughtn't to be preinstructing
you oughtn't to be preinstructing
they oughtn't to be preinstructing	I oughtn't to have preinstructed
you oughtn't to have preinstructed
she oughtn't to have preinstructed
we oughtn't to have preinstructed
you oughtn't to have preinstructed
they oughtn't to have preinstructed	I oughtn't to have been preinstructing
you oughtn't to have been preinstructing
she oughtn't to have been preinstructing
we oughtn't to have been preinstructing
you oughtn't to have been preinstructing
they oughtn't to have been preinstructing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I preinstruct?
ought to you preinstruct?
ought to she preinstruct?
ought to we preinstruct?
ought to you preinstruct?
ought to they preinstruct? 	ought to I be preinstructing?
ought to you be preinstructing?
ought to she be preinstructing?
ought to we be preinstructing?
ought to you be preinstructing?
ought to they be preinstructing? 	ought to I have preinstructed?
ought to you have preinstructed?
ought to she have preinstructed?
ought to we have preinstructed?
ought to you have preinstructed?
ought to they have preinstructed? 	ought to I have been preinstructing?
ought to you have been preinstructing?
ought to she have been preinstructing?
ought to we have been preinstructing?
ought to you have been preinstructing?
ought to they have been preinstructing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
oughtn't I to preinstruct?
oughtn't you to preinstruct?
oughtn't she to preinstruct?
oughtn't we to preinstruct?
oughtn't you to preinstruct?
oughtn't they to preinstruct? 	oughtn't I to be preinstructing?
oughtn't you to be preinstructing?
oughtn't she to be preinstructing?
oughtn't we to be preinstructing?
oughtn't you to be preinstructing?
oughtn't they to be preinstructing? 	oughtn't I to have preinstructed?
oughtn't you to have preinstructed?
oughtn't she to have preinstructed?
oughtn't we to have preinstructed?
oughtn't you to have preinstructed?
oughtn't they to have preinstructed? 	oughtn't I to have been preinstructing?
oughtn't you to have been preinstructing?
oughtn't she to have been preinstructing?
oughtn't we to have been preinstructing?
oughtn't you to have been preinstructing?
oughtn't they to have been preinstructing?