ought to preboard
Verbe régulier : preboard - preboarded- preboarded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to preboard
you ought to preboard
she ought to preboard
we ought to preboard
you ought to preboard
they ought to preboard 	I ought to be preboarding
you ought to be preboarding
she ought to be preboarding
we ought to be preboarding
you ought to be preboarding
they ought to be preboarding	I ought to have preboarded
you ought to have preboarded
she ought to have preboarded
we ought to have preboarded
you ought to have preboarded
they ought to have preboarded	I ought to have been preboarding
you ought to have been preboarding
she ought to have been preboarding
we ought to have been preboarding
you ought to have been preboarding
they ought to have been preboarding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought not to preboard
you ought not to preboard
she ought not to preboard
we ought not to preboard
you ought not to preboard
they ought not to preboard 	I ought not to preboarding
you ought not to preboarding
she ought not to preboarding
we ought not to preboarding
you ought not to preboarding
they ought not to preboarding	I ought not to have preboarded
you ought not to have preboarded
she ought not to have preboarded
we ought not to have preboarded
you ought not to have preboarded
they ought not to have preboarded	I ought not to have been preboarding
you ought not to have been preboarding
she ought not to have been preboarding
we ought not to have been preboarding
you ought not to have been preboarding
they ought not to have been preboarding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I preboard?
ought to you preboard?
ought to she preboard?
ought to we preboard?
ought to you preboard?
ought to they preboard? 	ought to I be preboarding?
ought to you be preboarding?
ought to she be preboarding?
ought to we be preboarding?
ought to you be preboarding?
ought to they be preboarding? 	ought to I have preboarded?
ought to you have preboarded?
ought to she have preboarded?
ought to we have preboarded?
ought to you have preboarded?
ought to they have preboarded? 	ought to I have been preboarding?
ought to you have been preboarding?
ought to she have been preboarding?
ought to we have been preboarding?
ought to you have been preboarding?
ought to they have been preboarding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought I not to preboard?
ought you not to preboard?
ought she not to preboard?
ought we not to preboard?
ought you not to preboard?
ought they not to preboard? 	ought I not to be preboarding?
ought you not to be preboarding?
ought she not to be preboarding?
ought we not to be preboarding?
ought you not to be preboarding?
ought they not to be preboarding? 	ought I not to have preboarded?
ought you not to have preboarded?
ought she not to have preboarded?
ought we not to have preboarded?
ought you not to have preboarded?
ought they not to have preboarded? 	ought I not to have been preboarding?
ought you not to have been preboarding?
ought she not to have been preboarding?
ought we not to have been preboarding?
ought you not to have been preboarding?
ought they not to have been preboarding?