ought to preinvestigate
Verbe régulier : preinvestigate - preinvestigated- preinvestigated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to preinvestigate
you ought to preinvestigate
he ought to preinvestigate
we ought to preinvestigate
you ought to preinvestigate
they ought to preinvestigate 	I ought to be preinvestigating
you ought to be preinvestigating
he ought to be preinvestigating
we ought to be preinvestigating
you ought to be preinvestigating
they ought to be preinvestigating	I ought to have preinvestigated
you ought to have preinvestigated
he ought to have preinvestigated
we ought to have preinvestigated
you ought to have preinvestigated
they ought to have preinvestigated	I ought to have been preinvestigating
you ought to have been preinvestigating
he ought to have been preinvestigating
we ought to have been preinvestigating
you ought to have been preinvestigating
they ought to have been preinvestigating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I oughtn't to preinvestigate
you oughtn't to preinvestigate
he oughtn't to preinvestigate
we oughtn't to preinvestigate
you oughtn't to preinvestigate
they oughtn't to preinvestigate 	I oughtn't to be preinvestigating
you oughtn't to be preinvestigating
he oughtn't to be preinvestigating
we oughtn't to be preinvestigating
you oughtn't to be preinvestigating
they oughtn't to be preinvestigating	I oughtn't to have preinvestigated
you oughtn't to have preinvestigated
he oughtn't to have preinvestigated
we oughtn't to have preinvestigated
you oughtn't to have preinvestigated
they oughtn't to have preinvestigated	I oughtn't to have been preinvestigating
you oughtn't to have been preinvestigating
he oughtn't to have been preinvestigating
we oughtn't to have been preinvestigating
you oughtn't to have been preinvestigating
they oughtn't to have been preinvestigating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I preinvestigate?
ought to you preinvestigate?
ought to he preinvestigate?
ought to we preinvestigate?
ought to you preinvestigate?
ought to they preinvestigate? 	ought to I be preinvestigating?
ought to you be preinvestigating?
ought to he be preinvestigating?
ought to we be preinvestigating?
ought to you be preinvestigating?
ought to they be preinvestigating? 	ought to I have preinvestigated?
ought to you have preinvestigated?
ought to he have preinvestigated?
ought to we have preinvestigated?
ought to you have preinvestigated?
ought to they have preinvestigated? 	ought to I have been preinvestigating?
ought to you have been preinvestigating?
ought to he have been preinvestigating?
ought to we have been preinvestigating?
ought to you have been preinvestigating?
ought to they have been preinvestigating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
oughtn't I to preinvestigate?
oughtn't you to preinvestigate?
oughtn't he to preinvestigate?
oughtn't we to preinvestigate?
oughtn't you to preinvestigate?
oughtn't they to preinvestigate? 	oughtn't I to be preinvestigating?
oughtn't you to be preinvestigating?
oughtn't he to be preinvestigating?
oughtn't we to be preinvestigating?
oughtn't you to be preinvestigating?
oughtn't they to be preinvestigating? 	oughtn't I to have preinvestigated?
oughtn't you to have preinvestigated?
oughtn't he to have preinvestigated?
oughtn't we to have preinvestigated?
oughtn't you to have preinvestigated?
oughtn't they to have preinvestigated? 	oughtn't I to have been preinvestigating?
oughtn't you to have been preinvestigating?
oughtn't he to have been preinvestigating?
oughtn't we to have been preinvestigating?
oughtn't you to have been preinvestigating?
oughtn't they to have been preinvestigating?