ought to concentrate
Verbe régulier : concentrate - concentrated- concentrated
Traduction française : se concentrer - concentrer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to concentrate
you ought to concentrate
he ought to concentrate
we ought to concentrate
you ought to concentrate
they ought to concentrate 	I ought to be concentrating
you ought to be concentrating
he ought to be concentrating
we ought to be concentrating
you ought to be concentrating
they ought to be concentrating	I ought to have concentrated
you ought to have concentrated
he ought to have concentrated
we ought to have concentrated
you ought to have concentrated
they ought to have concentrated	I ought to have been concentrating
you ought to have been concentrating
he ought to have been concentrating
we ought to have been concentrating
you ought to have been concentrating
they ought to have been concentrating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I oughtn't to concentrate
you oughtn't to concentrate
he oughtn't to concentrate
we oughtn't to concentrate
you oughtn't to concentrate
they oughtn't to concentrate 	I oughtn't to be concentrating
you oughtn't to be concentrating
he oughtn't to be concentrating
we oughtn't to be concentrating
you oughtn't to be concentrating
they oughtn't to be concentrating	I oughtn't to have concentrated
you oughtn't to have concentrated
he oughtn't to have concentrated
we oughtn't to have concentrated
you oughtn't to have concentrated
they oughtn't to have concentrated	I oughtn't to have been concentrating
you oughtn't to have been concentrating
he oughtn't to have been concentrating
we oughtn't to have been concentrating
you oughtn't to have been concentrating
they oughtn't to have been concentrating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I concentrate?
ought to you concentrate?
ought to he concentrate?
ought to we concentrate?
ought to you concentrate?
ought to they concentrate? 	ought to I be concentrating?
ought to you be concentrating?
ought to he be concentrating?
ought to we be concentrating?
ought to you be concentrating?
ought to they be concentrating? 	ought to I have concentrated?
ought to you have concentrated?
ought to he have concentrated?
ought to we have concentrated?
ought to you have concentrated?
ought to they have concentrated? 	ought to I have been concentrating?
ought to you have been concentrating?
ought to he have been concentrating?
ought to we have been concentrating?
ought to you have been concentrating?
ought to they have been concentrating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
oughtn't I to concentrate?
oughtn't you to concentrate?
oughtn't he to concentrate?
oughtn't we to concentrate?
oughtn't you to concentrate?
oughtn't they to concentrate? 	oughtn't I to be concentrating?
oughtn't you to be concentrating?
oughtn't he to be concentrating?
oughtn't we to be concentrating?
oughtn't you to be concentrating?
oughtn't they to be concentrating? 	oughtn't I to have concentrated?
oughtn't you to have concentrated?
oughtn't he to have concentrated?
oughtn't we to have concentrated?
oughtn't you to have concentrated?
oughtn't they to have concentrated? 	oughtn't I to have been concentrating?
oughtn't you to have been concentrating?
oughtn't he to have been concentrating?
oughtn't we to have been concentrating?
oughtn't you to have been concentrating?
oughtn't they to have been concentrating?