ought to prewarn
Verbe régulier : prewarn - prewarned- prewarned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought to prewarn
you ought to prewarn
she ought to prewarn
we ought to prewarn
you ought to prewarn
they ought to prewarn 	I ought to be prewarning
you ought to be prewarning
she ought to be prewarning
we ought to be prewarning
you ought to be prewarning
they ought to be prewarning	I ought to have prewarned
you ought to have prewarned
she ought to have prewarned
we ought to have prewarned
you ought to have prewarned
they ought to have prewarned	I ought to have been prewarning
you ought to have been prewarning
she ought to have been prewarning
we ought to have been prewarning
you ought to have been prewarning
they ought to have been prewarning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I ought not to prewarn
you ought not to prewarn
she ought not to prewarn
we ought not to prewarn
you ought not to prewarn
they ought not to prewarn 	I ought not to prewarning
you ought not to prewarning
she ought not to prewarning
we ought not to prewarning
you ought not to prewarning
they ought not to prewarning	I ought not to have prewarned
you ought not to have prewarned
she ought not to have prewarned
we ought not to have prewarned
you ought not to have prewarned
they ought not to have prewarned	I ought not to have been prewarning
you ought not to have been prewarning
she ought not to have been prewarning
we ought not to have been prewarning
you ought not to have been prewarning
they ought not to have been prewarning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought to I prewarn?
ought to you prewarn?
ought to she prewarn?
ought to we prewarn?
ought to you prewarn?
ought to they prewarn? 	ought to I be prewarning?
ought to you be prewarning?
ought to she be prewarning?
ought to we be prewarning?
ought to you be prewarning?
ought to they be prewarning? 	ought to I have prewarned?
ought to you have prewarned?
ought to she have prewarned?
ought to we have prewarned?
ought to you have prewarned?
ought to they have prewarned? 	ought to I have been prewarning?
ought to you have been prewarning?
ought to she have been prewarning?
ought to we have been prewarning?
ought to you have been prewarning?
ought to they have been prewarning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
ought I not to prewarn?
ought you not to prewarn?
ought she not to prewarn?
ought we not to prewarn?
ought you not to prewarn?
ought they not to prewarn? 	ought I not to be prewarning?
ought you not to be prewarning?
ought she not to be prewarning?
ought we not to be prewarning?
ought you not to be prewarning?
ought they not to be prewarning? 	ought I not to have prewarned?
ought you not to have prewarned?
ought she not to have prewarned?
ought we not to have prewarned?
ought you not to have prewarned?
ought they not to have prewarned? 	ought I not to have been prewarning?
ought you not to have been prewarning?
ought she not to have been prewarning?
ought we not to have been prewarning?
ought you not to have been prewarning?
ought they not to have been prewarning?