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
she 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
she 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
she 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
she 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 ought not to concentrate
you ought not to concentrate
she ought not to concentrate
we ought not to concentrate
you ought not to concentrate
they ought not to concentrate 	I ought not to concentrating
you ought not to concentrating
she ought not to concentrating
we ought not to concentrating
you ought not to concentrating
they ought not to concentrating	I ought not to have concentrated
you ought not to have concentrated
she ought not to have concentrated
we ought not to have concentrated
you ought not to have concentrated
they ought not to have concentrated	I ought not to have been concentrating
you ought not to have been concentrating
she ought not to have been concentrating
we ought not to have been concentrating
you ought not to have been concentrating
they ought not 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 she 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 she 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 she 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 she 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 	
ought I not to concentrate?
ought you not to concentrate?
ought she not to concentrate?
ought we not to concentrate?
ought you not to concentrate?
ought they not to concentrate? 	ought I not to be concentrating?
ought you not to be concentrating?
ought she not to be concentrating?
ought we not to be concentrating?
ought you not to be concentrating?
ought they not to be concentrating? 	ought I not to have concentrated?
ought you not to have concentrated?
ought she not to have concentrated?
ought we not to have concentrated?
ought you not to have concentrated?
ought they not to have concentrated? 	ought I not to have been concentrating?
ought you not to have been concentrating?
ought she not to have been concentrating?
ought we not to have been concentrating?
ought you not to have been concentrating?
ought they not to have been concentrating?